Kenworth T300 — MPG, VIN Decoder, Recalls, Reliability & Specs

What's wrong. Paccar is recalling model year 2008-2010 kenworth t300, t270, and t370, model year 2009-2010 t800 and peterbilt model year 2008-2010 335, 340, and 367 vehicles built on cummins' diesel engine. The vehicles may be designed with a hard wired, dash-mounted switch that enables the vehicle operator to inhibit aftertreatment diesel particulate filter regeneration in environments where the operator believes it may be unsafe for elevated exhaust temperatures. Due to an issue with the logic in the ecm software in these engines, the switch may not function correctly, leading the operator to believe that the switch is in "inhibit" mode when it is not.

Risk. This condition will permit hot exhaust gases to exit the vehicle tailpipe, increasing the risk of melting or burning of nearby surfaces, or a fire.

Fix. Paccar is working with cummins to repair the engines free of charge please see 09e-046. The safety recall began on october 1, 2009. Owners may contact cummins at 1-800-diesels (1-800-343-7357).

What's wrong. Paccar is recalling 6,169 my 2008 kenworth t300, t660, t800, t2000, w900 and c500 vehicles and my 2008-2009 peterbilt models 365, 367, 384, 387, 388, 389 and 389 kits. Certain door latch assemblies on these vehicles fail to conform to the requirements of federal motor vehicle safety standard no. 206, 'door locks and door retention components." the rotor in some of these door latch assemblies did not receive the proper heat treatment and may be soft.

Risk. In the event of a crash, force could cause the rotor to crack and the door would not have primary or secondary closing security which could possibly lead to injury of the vehicle occupant.

Fix. Paccar is working with trimark and will inspect and replace the door latch if it is found to be defective. The recall began on march 14, 2008. Owners may contact kenworth at 1-425-828-5440 or peterbilt at 1-940-591-4196.

What's wrong. On certain trucks equipped with cummins isc or paccar px8 engines, the jumper wire between the grid heater relay to the fuse block has been routed in such a way that the potential exists for it to rub against the radiator support.

Risk. The suspect wire is down stream of the fuse; this chaff point could cause the 250 amp charge wire to arc, potentially causing a fire.

Fix. Dealers will inspect the routing of the jumper wire. If the wire is not routed correctly, it will be inspected for rubbing or chaffing and replaced if necessary free of charge. The recall began on june 22, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. Paccar is recalling model year 2008-2010 kenworth t300, t270, and t370, model year 2009-2010 t800 and peterbilt model year 2008-2010 335, 340, and 367 vehicles built on cummins' diesel engine. The vehicles may be designed with a hard wired, dash-mounted switch that enables the vehicle operator to inhibit aftertreatment diesel particulate filter regeneration in environments where the operator believes it may be unsafe for elevated exhaust temperatures. Due to an issue with the logic in the ecm software in these engines, the switch may not function correctly, leading the operator to believe that the switch is in "inhibit" mode when it is not.

Risk. This condition will permit hot exhaust gases to exit the vehicle tailpipe, increasing the risk of melting or burning of nearby surfaces, or a fire.

Fix. Paccar is working with cummins to repair the engines free of charge please see 09e-046. The safety recall began on october 1, 2009. Owners may contact cummins at 1-800-diesels (1-800-343-7357).

What's wrong. Certain trucks equipped with eaton synflex eclipse brand extruded nylon air brake hose tubing fail to comply with the requirements of federal motor vehicle safety standard no. 106, "brake hoses." the tubing was manufactured with only four layers of nylon material, instead of the specified five layers.

Risk. The diameter of the hose affects the fittings which may allow air to leak from the brakes and create the potential for a vehicle crash.

Fix. Dealers will inspect the air brake hoses and, if necessary, replace the hoses. The recall began on february 22, 2008. Owner notification schedule for this campaign. Owners may contact kenworth at 1-425-828-5440 or peterbilt at 1-940-591-4196.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. Certain trucks fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." the trailer light line may have been routed using too tight of a bend radius. This routing method could cause the wires within the harness plug to be pulled away from the chassis plug resulting in an intermittent or complete electrical power loss to the trailer.

Risk. Should power be lost, the electrical circuits would not provide power to the antilock system on the towed vehicle increasing the risk of a crash.

Fix. Dealers will reroute the light line to eliminate the excessive bend radius and replace any plug or harness that has been damaged free of charge. The recall began on april 16, 2007. Owner may contact kenworth at 425-828-5440.

What's wrong. On certain trucks, the axle housings may have been manufactured with steel that was out of specification which could result in a fatigue failure over time.

Risk. If a fatigue failure occurs and is left unattended, the axle may lock up or the end of the axle could come off, which may result in a vehicle crash.

Fix. Dealers will inspect and replace the axles free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440 and peterbilt at 1-940-591-4196.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. On certain trucks equipped with cummins isc or paccar px8 engines, the jumper wire between the grid heater relay to the fuse block has been routed in such a way that the potential exists for it to rub against the radiator support.

Risk. The suspect wire is down stream of the fuse; this chaff point could cause the 250 amp charge wire to arc, potentially causing a fire.

Fix. Dealers will inspect the routing of the jumper wire. If the wire is not routed correctly, it will be inspected for rubbing or chaffing and replaced if necessary free of charge. The recall began on june 22, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. Certain trucks fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." the trailer light line may have been routed using too tight of a bend radius. This routing method could cause the wires within the harness plug to be pulled away from the chassis plug resulting in an intermittent or complete electrical power loss to the trailer.

Risk. Should power be lost, the electrical circuits would not provide power to the antilock system on the towed vehicle increasing the risk of a crash.

Fix. Dealers will reroute the light line to eliminate the excessive bend radius and replace any plug or harness that has been damaged free of charge. The recall began on april 16, 2007. Owner may contact kenworth at 425-828-5440.

What's wrong. On certain trucks, the axle housings may have been manufactured with steel that was out of specification which could result in a fatigue failure over time.

Risk. If a fatigue failure occurs and is left unattended, the axle may lock up or the end of the axle could come off, which may result in a vehicle crash.

Fix. Dealers will inspect and replace the axles free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440 and peterbilt at 1-940-591-4196.

What's wrong. Paccar is recalling 36 my 2007-2008 t270, t370 and my 207 t300 trucks equipped with dual under-cab fuel tanks and an in-cab battery box (icbb). A harness support bracket mounted on the underside of the cab may come in contact with the fuel line at the top of the fuel splitter valve.

Risk. The edge of the bracket may compromise the fuel line causing an interruption in fuel flow, or loss of fuel resulting in compromised vehicle performance or potentially causing a fire.

Fix. Dealers will re-work the existing icbb cable routing bracket and replace the fuel splitter valve bracket to provide adequate clearance between components. The recall began o june 30, 2008. Owners may contact kenworth at 1-425-828-5440.

What's wrong. An incorrect switch was installed in the cruise control system on certain model t300 trucks.

Risk. A light application of the brakes will not deactivate the cruise control and the system will have to be shut off by the dash switch. This could lead to unintended acceleration and a crash without warning.

Fix. Kenworth will install the correct sensor switch. The recall began on january 10, 2007. Owners may contact kenworth at 1-425-828-5440.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. On certain trucks equipped with cummins isc or paccar px8 engines, the jumper wire between the grid heater relay to the fuse block has been routed in such a way that the potential exists for it to rub against the radiator support.

Risk. The suspect wire is down stream of the fuse; this chaff point could cause the 250 amp charge wire to arc, potentially causing a fire.

Fix. Dealers will inspect the routing of the jumper wire. If the wire is not routed correctly, it will be inspected for rubbing or chaffing and replaced if necessary free of charge. The recall began on june 22, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. On certain trucks equipped with hydraulic brakes, there may be a defect in the anchor bolt of some bosch model #305 parking brake assemblies. A different coating was applied to the bolt which did not meet paccar specifications. This could reduce the fatigue life of the bolt and lead to premature failure.

Risk. If this bolt were to fail, the truck could roll away while parked without warning, which could result in a crash.

Fix. Dealers will inspect the parking brake assembly and replace the defective bolts free of charge. Peterbilt's recall began on november 4, 2005; and kenworth began on november 4, 2005. Owners may contact kenworth at 1-425-828-5440 or peterbilt at 1-940-591-4201.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. On certain trucks equipped with hydraulic brakes, there may be a defect in the anchor bolt of some bosch model #305 parking brake assemblies. A different coating was applied to the bolt which did not meet paccar specifications. This could reduce the fatigue life of the bolt and lead to premature failure.

Risk. If this bolt were to fail, the truck could roll away while parked without warning, which could result in a crash.

Fix. Dealers will inspect the parking brake assembly and replace the defective bolts free of charge. Peterbilt's recall began on november 4, 2005; and kenworth began on november 4, 2005. Owners may contact kenworth at 1-425-828-5440 or peterbilt at 1-940-591-4201.

What's wrong. On certain trucks built with cummins isc and isl engines, plugs were assembled incorrectly creating stress and cracks which could cause an oil leak.

Risk. This oil leakage has the potential to ignite and cause a fire in the engine compartment of the vehicle.

Fix. Cummins will notify owners and arrange for installation of a steel cup plug boss cap. Owners should contact cummins at 1-800-343-7357.

What's wrong. On certain trucks equipped with caterpillar c7 or 3126e 2002 engines and horton fan hubs, the fan hub mounting bolts can fail, resulting in the hub and fan assembly separating from the engine. This loss of clamp load causes unwanted vibration in the assembly that leads to bolt failure.

Risk. If the bolts fail, the complete hub and fan assembly could separate from the engine resulting in equipment damage and/or personal injury.

Fix. Dealers will install a new journal bracket. The recall began may 11, 2004. Owners should contact kenworth at 1-425-828-5440.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. On certain trucks, the power feed harness p92-1993 terminals were not properly crimped.

Risk. This could lead to intermittent power loss affecting the electrical system and possibly result in a fire.

Fix. Dealers will replace the harness. The recall began january 13, 2005. Owners should contact kenworth at 1-425-828-5440.

What's wrong. On certain trucks, the wiring, parts, or transmission programming required for the auto neutral feature to function as designed were either not installed, connected, or programmed properly.

Risk. If any of these conditions exists, the transmission will not automatically shift into neutral when left in drive with the parking brake set engaged. The vehicle could move without warning increasing the risk of a crash.

Fix. Dealers will inspect the affected vehicles to ensure the auto neutral feature functions properly and, if needed, will make the necessary repairs free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425-828-5440.

What's wrong. Certain trucks equipped with trailer connections fail to comply with the requirements of federal motor vehicle safety standards (fmvss) no. 121, "air brake systems," and no. 108, "lamps, reflective devices, and associated equipment." the supplier removed a rubber grommet from the trailer light line connector. The vehicles are experiencing corrosion at the 7-way trailer connection. This causes intermittent flashing/flickering of the trailer lights.

Risk. This could cause an electrical short and/or possible fire hazard.

Fix. Dealers will install the missing grommet on all affected chassis. If a connector is found defective, it will be replaced with a new connector. Owner notification is began on march 14, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5440.

What's wrong. On certain heavy duty trucks, the locking tab that locks the outer spindle nut onto the spindle was not engaged or properly bent over.

Risk. Failure to properly engage the locking feature into the nut could cause the nut to loosen which will eventually cause the wheel bearing to over heat and fail if undetected. If the loose nut is not detected, the outer end (tire, wheel and hub assembly) could become separated from the vehicle, increasing the risk of a crash.

Fix. Dealers will inspect the hubs to determine if the locking tabs are properly bent. If the locking tabs are not bent, then dealers will inspect the appropriate components for premature wear and replace such components as required and properly secure the retaining nut by bending over the locking tab. Owner notification began september 17, 2003. Owners should contact kenworth at 1-425-828-5440 or peterbilt at 940-591-4201.

What's wrong. On certain trucks equipped with jost international jsk 37u series fifth wheels, a fatigue crack can develop in the bracket pin weld under certain loading conditions.

Risk. If left undetected or corrected it could lead to the separation of the fifth wheel top plate from its mounting structure, possibly resulting in a crash.

Fix. Dealers will replace the bracket pins and repair instructions free of charge. Peterbilt's owner notification began june 20, 2003. Kenworth's owner notification began june 12, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 940-591-4201 or kenworth 425-828-5440.

What's wrong. On certain trucks equipped with caterpillar c7 or 3126e 2002 engines and horton fan hubs, the fan hub mounting bolts can fail, resulting in the hub and fan assembly separating from the engine. This loss of clamp load causes unwanted vibration in the assembly that leads to bolt failure.

Risk. If the bolts fail, the complete hub and fan assembly could separate from the engine resulting in equipment damage and/or personal injury.

Fix. Dealers will install a new journal bracket. The recall began may 11, 2004. Owners should contact kenworth at 1-425-828-5440.

What's wrong. Certain trucks equipped with trailer connections fail to comply with the requirements of federal motor vehicle safety standards (fmvss) no. 121, "air brake systems," and no. 108, "lamps, reflective devices, and associated equipment." the supplier removed a rubber grommet from the trailer light line connector. The vehicles are experiencing corrosion at the 7-way trailer connection. This causes intermittent flashing/flickering of the trailer lights.

Risk. This could cause an electrical short and/or possible fire hazard.

Fix. Dealers will install the missing grommet on all affected chassis. If a connector is found defective, it will be replaced with a new connector. Owner notification is began on march 14, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5440.

What's wrong. On certain vehicles equipped with bendix tc-7 trailer control hand-operated valve with push-to-connect fittings. The delivery port in the valve body may be partially blocked due to a problem during the molding process.

Risk. Such blockage may slow the delivery and exhaust of air to and from the trailer brakes when they are operated by this hand-operated trailer control valve.

Fix. Paccar will notify its customers and inspect and replace, if necessary, the hand valve free of charge. Owner notification began october 18, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 940-591-4201.

What's wrong. On certain trucks equipped with jost international jsk 37u series fifth wheels, a fatigue crack can develop in the bracket pin weld under certain loading conditions.

Risk. If left undetected or corrected it could lead to the separation of the fifth wheel top plate from its mounting structure, possibly resulting in a crash.

Fix. Dealers will replace the bracket pins and repair instructions free of charge. Peterbilt's owner notification began june 20, 2003. Kenworth's owner notification began june 12, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 940-591-4201 or kenworth 425-828-5440.

What's wrong. On certain trucks equipped with caterpillar 3126e hydraulically controlled electronically actuated unit injected diesel engines with high efficiency pumps (hep8). The pump components may experience a high pressure seal failure which can result in a short period of rough running and subsequent engine stall due to a loss of injection actuation pressure.

Risk. Once engine stall occurs, the engine cannot be restarted, increasing the risk of a crash.

Fix. Caterpillar is conducting the owner notification and remedy for this campaign. Dealers will inspect the pump serial numbers and replace the pump if necessary. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact caterpillar at 1-800-447-4986, or kenworth at 425-828-5440, or peterbilt at 940-591-4201.

What's wrong. On certain heavy duty trucks equipped with meritor wabco pneumatic anitlock brake system (abs) valve packages, the assembly bolts on these valve packages were not tightened correctly.

Risk. Bolts torqued below specification will not reliably prevent air leakage at the affected abs valve package interface joints once the component begins normal vehicle operation. If air leaks develop at any of the abs valve package interface joints, brake system pressure reductions could occur during braking or normal operation with units equipped with the traction control option, potentially extending stopping distances, possibly resulting in a vehicle crash.

Fix. Dealers will tighten the fasteners to the proper specification. Owner notification began february 15, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5440 or peterbilt at 1-940-591-4201.

What's wrong. On certain trucks equipped with jost international jsk 37u series fifth wheels, a fatigue crack can develop in the bracket pin weld under certain loading conditions.

Risk. If left undetected or corrected it could lead to the separation of the fifth wheel top plate from its mounting structure, possibly resulting in a crash.

Fix. Dealers will replace the bracket pins and repair instructions free of charge. Peterbilt's owner notification began june 20, 2003. Kenworth's owner notification began june 12, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 940-591-4201 or kenworth 425-828-5440.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: certain vehicles having an intended service code of "fire service" and either type 24 or larger front brake chambers or type 36 rear brake chambers fail to comply with requirements of fmvss no. 121, "air brake systems." these vehicles were built with a combined air reservoir volume less than 12 times the combined volume of all service chambers.

Risk. Unusually frequent applications of the air brakes could deplete the available air supply more quickly than expected.

Fix. Dealers will install an additional air tank on chassis with a single rear axle. On tandem rear axle chassis, dealer will replace an existing air tank with a larger air tank. Owner notification began july 16, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: certain heavy duty trucks fail to comply with the requirements of fmvss no. 103, "windshield defrosting and defogging systems." the mode door in an hvac system can become inoperable. The mode door cam and actuator could bind, causing the cam retaining tabs to shear off.

Risk. This failure may inhibit the ability to direct air blowing from the hvac system to the windshield, potentially reducing the driver's visibility.

Fix. Dealers will inspect the mode door operation and replace the hvac cab mode housing assembly if necessary. Owner notification began november 7, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Heavy duty trucks equipped with trw tie rod ends on certain arvinmeritor and dana axles. Peterbilt will recall 1,434 vehicles equipped with arvinmeritor axles manufactured from december 11, 1999, to may 14, 2000, and from july 22 to september 30, 2000. Kenworth will recall 859 vehicles equipped with arvinmeritor vehicles manufactured from december 11, 1999, to may 23, 2000, and from july 27, 2000, to september 30, 2000 and kennworth will recall an additional 4,151 vehicles equipped with dana axles and manufactured from june 23 to december 6, 1999, and from may 23 to september 30, 2000. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk. This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Fix. Dealers will remove and replace all affected tie rods and drag links with different designed ends. Owner notification began july 15, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 1-940-591-4201 or kenworth at 1-425-828-5440.

What's wrong. Vehicle description: heavy duty trucks equipped with chalmers 1000 series and 800 series suspension kits. These suspension kits may have insufficient penetration of the weld attaching the torque rod eye to the torque rod tube.

Risk. Failure of the weld could result in separation of the eye and tube, causing a lock of axle retention, which could result in loss of vehicle control.

Fix. Dealers will replace all chalmers fixed torque rods on these vehicles. Owner notification began july 27, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 1-940-591-4000 or kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks equipped with eaton autoshift gen ii transmission assemblies. Due to a software problem in the transmission assemblies, the transmission will select the wrong gear.

Risk. If an inappropriate gear is selected without the driver's knowledge, the vehicle will react differently than expected, possibly resulting in injury or crash.

Fix. Dealers will replace the autoshift transmissions. Eaton performed the campaign for the kenworth portion. However peterbilt will be conducting their own campaign.

What's wrong. Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain meritor axles. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk. This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Fix. Dealers will remove and replace all affected tie rods and drag links with different designed ends. Owner notification began october 24, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 1-940-591-4000 or kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: certain vehicles having an intended service code of "fire service" and either type 24 or larger front brake chambers or type 36 rear brake chambers fail to comply with requirements of fmvss no. 121, "air brake systems." these vehicles were built with a combined air reservoir volume less than 12 times the combined volume of all service chambers.

Risk. Unusually frequent applications of the air brakes could deplete the available air supply more quickly than expected.

Fix. Dealers will install an additional air tank on chassis with a single rear axle. On tandem rear axle chassis, dealer will replace an existing air tank with a larger air tank. Owner notification began july 16, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Heavy duty trucks equipped with trw tie rod ends on certain arvinmeritor and dana axles. Peterbilt will recall 1,434 vehicles equipped with arvinmeritor axles manufactured from december 11, 1999, to may 14, 2000, and from july 22 to september 30, 2000. Kenworth will recall 859 vehicles equipped with arvinmeritor vehicles manufactured from december 11, 1999, to may 23, 2000, and from july 27, 2000, to september 30, 2000 and kennworth will recall an additional 4,151 vehicles equipped with dana axles and manufactured from june 23 to december 6, 1999, and from may 23 to september 30, 2000. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk. This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Fix. Dealers will remove and replace all affected tie rods and drag links with different designed ends. Owner notification began july 15, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 1-940-591-4201 or kenworth at 1-425-828-5440.

What's wrong. Vehicle description: heavy duty trucks equipped with tie rod assemblies manufactured by trw. The suspect tie rods contain 24-dl model ball sockets. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.

Risk. If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash.

Fix. Dealers will replace the defective ball sockets and/or drag links. Owner notification began on april 10, 2001, to kenworth owners and on april 25, 2001, to peterbilt owners. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000, peterbilt at 1-940-591-4000 or trw customer service at 1-866-280-3287.

What's wrong. Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain meritor axles. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk. This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Fix. Dealers will remove and replace all affected tie rods and drag links with different designed ends.

What's wrong. Vehicle description: heavy duty trucks. The installation of the aluminum steering driveline exceeds the u-joint angles specified by dana, the driveline manufacturer. By exceeding this specification, the u-joint could contact and cause a stress riser in the aluminum drive shaft. This contact could cause in a notch in the aluminum drivement, resulting in a stress riser in the shaft.

Risk. This notch could cause premature failure of the steering driveline, resulting in loss of vehicle control and/or vehicle crash without prior warning.

Fix. Dealers will replace the aluminum driveline with a steel version.

What's wrong. Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain meritor axles. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk. This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Fix. Dealers will remove and replace all affected tie rods and drag links with different designed ends. Owner notification began october 24, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact peterbilt at 1-940-591-4000 or kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks. The air hoses from the relay valves were connected directly to the service brake chambers, rather than beting connected through the anti-lock braking system (abs) modulator. This does not comply with fmvss no. 121, "air brake systems."

Fix. Dealers will reroute the air hoses through the abs modulator.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.

What's wrong. Vehicle description: heavy duty trucks equipped with 10,000 or 12,000 pound dana front axles. A condition called brake "sprag", which is characterized by a noise at the end of an applied stop, can develop in the brake system. This noise is the result of a pulsation of the brake lining with the brake drum during brake application. These noise vibrations occur at the resonant frequency of the front axle cross-tube assembly and cause unusually high strain forces in the threaded portion of the tie rod ends that are connected to the cross-tube.

Risk. Failure of the tie rod end can cause loss of steering control and possibly result in a vehicle crash.

Fix. Dealers will replace the brake lining on the front axle of each vehicle with a lining made of a different composition. In addition, the tie rod ends will be replaced free of charge. Owner notification began october 12, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact kenworth at 1-425-828-5000.