2001 MITSUBISHI Diamante Problems

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Complaints Reported

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Complaints by Component

VISIBILITY

49 complaints

WINDOWS ARE FOGGING UP DO T A FAULTY HEATER CORE. I REALLY DON'T MIND REPAIRING THE CAR SEEING THAT IT HAS 120K ON IT.. I PURCHASED THE CAR BRAND NEW AND THIS WILL BE THE 3RD HEATER CORE!!! WHAT'S GOING ON! *TR

Apr 09, 2009

MITSUBISHI DIAMANTE INFAMOUS HEATER CORE PROBLEM ANTIFREEZE LEAKS INTO INTERIOR OF CAR. HORRIBLE SICKENING ANTI FREEZE SMELL, HAPPENS ON AN ABUNDANCE OF MITSUBISHI CARS. *TR

Aug 13, 2008

HEATER CORE IS CAUSING THE WINDOWS TO FOG UP, THE CAR TO SMELL LIKE ANTIFREEZE AND MAY BE DAMAGING THE ECU. THERE ARE HUNDREDS OF POSTS ONLINE ABOUT PEOPLE HAVING THIS PROBLEM OVER AND OVER WITH THIS CAR. IT IS CLEARLY A MANUFACTURERS DEFECT AND CUSTOMERS ARE LEFT PAYING THOUSANDS OF DOLLARS FO THE REPAIR. *TR

Apr 14, 2008

HEATER CORE WENT BAD AT 105,000 MILES. THIS SEEMS TO BE A MANUFACTORING PROBLEM AND MITSUBIHI SHOULD ADRESS THE ISSUE. *TR

Mar 14, 2008

MY 2001 MITSUBISHI DIAMANTE'S HEATER CORE WENT UP. I HAVE MASSIVE AMOUNTS OF COOLANT LEAKING ON MY PASSENGER SIDE, THICK SMOKE COMING FROM MY VENTS AND A BAD ODOR COMING FROM THE VENTS. I HAVE READ THIS IS A VERY VERY COMMON THING WITH MITSUBISHI'S ESPECIALLY DIAMANTE'S. *TR

Jan 17, 2008

+ 44 more complaints for this component

ENGINE AND ENGINE COOLING

7 complaints

MY CAR IS MAKING ME SICK!! I NOTICED A SMELL OF ANTI-FREEZE COMING OUT OF THE CLIMATE CONTROL VENTS. UPON FURTHER INVESTIGATION, I NOTICED ANTI-FREEZE/ENGINE COOLANT LEAKING FROM THE HEATER CORE DOWN ONTO FLOOR MATS, CLIMATE CONTROL INTAKE, ELECTRICAL WIRING INSIDE DASHBOARD, AND MORE IMPORTANTLY AUTOMATIC TRANSMISSION COMPUTER. THIS IS A SIGNIFICANT SAFETY AND HEALTH ISSUE AND NEEDS TO BE ADDRESSED IMMEDIATELY. WHERE IS MANUFACTURER'S RECALL. *JB

Oct 22, 2007

SINCE I BOUGHT THE USED CAR IN 2003 I FOUND THE CAR SMELLED SWEET, ANTIFREEZE COOLANT INSIDE, BUT I THOUGHT IT WAS NORMAL FOR THE CAR. *AK BUT IN FEB, THE BURNING ODOR BECAME STRONGER ESPECIALLY WHEN I TURN ON THE HEATER. NOW, THE FRONT INTERIOR WINDOWS BECOME FOGS UP RIGHT AWAY WHENEVER I TURN ON THE HEATER OR JUST DRIVING. THE ODOR IS GETTING ME SICK, AND THE WINDSHIELD IS SO FOGGED THAT I NEED TO CONSTANTLY WIPE IT JUST TO SEE OUT. I THINK THIS IS BECOMING UNSAFE TO DIRVE.

May 19, 2007

SMELL OF ANTI FREEZE 3 MONTHS AGO WHILE HEATER WAS RUNNING. WINDOWS STARTING TO FOG AND UNABLE TO DEFROST/DEFOG. WILL HAVE TO SCHEDULE A REPAIR WITH THE DEALER. THIS IS A MAJOR SAFETY CONCERN AS COOLANT VAPOR IS TOXIC TO BREATHE AND ELECTRICAL CONTROL COMPONENTS TO ENGINE MAY BE DAMAGED IF LEAKING INTO ELECTRICAL CONNECTIONS OR DEVICES; TRACTION CONTROL AND THROTTLE CONTROL BEING THE MOST DANGEROUS AND POSSIBLY FATALITY CAUSING. *JB

Oct 04, 2005

Injuries: 2

NOTICED A SMELL OF ANTIFREEZE COMMING OUT OF THE CLIMATE CONTROL VENTS. UPON FURTHER INVESTIGATION, I NOTICED ANTIFREEZE/ENGINE COOLANT LEAKING FROM THE HEATER CORE DOWN ONTO FLOOR MATTS, CLIMATE CONTROL INTAKE, ELECTRICAL WIRING INSIDE DASHBOARD, AND MORE IMPORTANTLY AUTOMATIC TRANSMISSION COMPUTER. THIS IS A SIGNIFICANT SAFETY AND HEALTH ISSUE AND NEEDS TO BE ADDRESSED IMMEDIATELY. WHERE IS MANUFACTURER'S RECALL.

Jun 26, 2005

HEATER CORE FAILURE/LEAK IN 2001 MITSUBISHI DIAMANTE LS; LEAKED ON CARPET; CONTINUOUS ODOR. DEALER MCGINNIS MITSUBISHI SAID IT WOULD COST OVER $1000 IN LABOR COSTS TO REPLACE.*AK

Dec 31, 2004

+ 2 more complaints for this component

ENGINE AND ENGINE COOLING,VISIBILITY

5 complaints

FOR NO PARTICULAR REASON MY CAR FILLS UP WITH THE SMELL OF ANTI-FREEZE COOLANT WHEN I TURN ON THE HEATER. I HAVE READ THAT THIS IS CAUSED BY LEAKING 0-RINGS AND THAT THIS WILL DAMAGE THE COMPUTERS WHICH ARE UNDERNEATH THE LEAK. THE CAR IS A 2001 MITSUBISHI DIAMANTE L.S. THE DEALER SAYS IT IS NOT A COMMON ISSUE. GOOGLE SAYS OTHERWISE. *TR

Apr 26, 2007

ANTI FREEZE ODOR IS OVERWHELMING IN THE CAR, ESPECIALLY WHEN THE HEATER IS RUN. I HAVE HAD THE CAR SINCE IT WAS NEW, AND HAD THE SAME PROBLEM AFTER ONLY A COUPLE OF MONTHS. THE DEALERSHIP FIXED THE ISSUE BY INSTALLING A NEW GASKET, BUT THE FIX HAS LASTED ONLY A COUPLE OF YEARS. MY WIFE AND I HAVE BEEN HAVING A VARIETY OF RESPIRATORY ILLNESSES RECENTLY, AND I BELIEVE THESE FUMES ARE A CONTRIBUTING FACTOR. *JB

Jan 26, 2007

2001 MITSUBISHI DIAMANTE EXPERIENCED PROBLEMS WITH THE HEATER CORE.*MR THE HEATER CORE HAD TO BE REPLACED BECAUSE ANTI-FREEZE WAS LEAKING INTO THE PASSENGER COMPARTMENT AND FOGGING THE WINDSHIELD. WHEN THE HEATER CORE WAS BEING REMOVED, THE CONSUMER NOTICED IT FAILED TO HAVE SUFFICIENT INSULATION. THE OIL PAN GASKET WAS LEAKING AND THE UPSTREAM OXYGEN SENSOR WAS REPLACED. *JB

May 25, 2005

HEATER CORE FAILED, CAUSING THE FRONT WINDSHIELD TO FOG UP. ALSO, CONSUMER COULD SMELL ANTI FREEZE INSIDE THE VEHICLE. DEALERSHIP WAS NOTIFIED BUT DID NOT RESOLVE THE PROBLEM.*AK

Jan 08, 2004

CAR SMELLS LIKE COOLANT. WINDOWS WON'T CLEAR UP WHILE IM DRIVING. VERY FOGGY. DEALER SAID I NEED A NEW HEATER CORE AT 43,000 MILES. *LA

Jan 04, 2004

SERVICE BRAKES, HYDRAULIC

4 complaints

DISC BRAKE PADS SHOW ACCELERATED WEAR, WITH REPLACEMENT AT 5,000 AND AGAIN AT 17,000 MILES. ABNORMAL WEAR NOT DUE TO "RIDING THE BRAKES". BELIEVE ACCELERATED WEAR COULD LEAD TO PREMATURE BRAKE FAILURE CAUSING ACCIDENT AND POSSIBLE LOSS OF LIFE. MR

Oct 01, 2002

I BELIEVE THIS IS COMMON WITH BRAKE SYSTEM AND COULD EVENTUALLY LEAD TO FATALITIES. *AK

Jun 01, 2002

BRAKE ROTORS HAD TO BE TURNED BECAUSE THEY STARTED WARPING. *AK

May 07, 2002

THE MANUFACTURER AND THE DEALER STATE THAT IT IS NORMAL WEAR AND TEAR TO HAVE TO REPLACE AND OR TURN ROTORS EVERY 18000 TO 20000 ON THIER CARS EVEN THOUGH THE BRAKES HAVE NOT FAILED. *AK

Dec 25, 2001

TIRES

3 complaints

SHORT LIFE OF TIRES. TIRES HAVE BEEN PROPERLY MAINTAINED SINCE THE PURCHASE OF VEHICLE BUT SOME HOW THE BELTS WERE SEPARATING AND THE TIRES WHERE "CHOPPED UP" SO THEY PUT IT. TIRES ARE ROTATED AND BALANCED REGULARLY IN WHICH I HAVE BEEN TOLD THAT A LACK OF THIS TYPE OF MAINTENANCE CAUSES THIS PROBLEM. SO I DON'T UNDERSTAND WHY I AM HAVING THE PROBLEMS WITH MY TIRES. I CONTACTED GOODYEAR ABOUT THE PROBLEM AND I WAS INSTRUCTED TO TAKE MY CAR TO A GOODYEAR DEALER IN WHICH I DID AND THEY CHECKED THE ALIGNMENT, THE ROTATION RECORDS, AND THE BALANCING AND ALL THOSE THINGS CHECKED OUT. THEY STILL REFUSED TO REPLACE THE TIRES AND REFUSED TO CONTACT GOODYEAR ABOUT THE RESULTS IN WHICH I HAD AND INTERNET EMAIL FROM CHEEDA MOORE INSTRUCTING THEM TO CALL HER DIRECTLY IF THEY COULD NOT HELP ME AND THEY DID NOT.*JB

Apr 01, 2003

ORIGINAL EQUIPMENT MOUNTED ON A 2001 MITSUBISHI DIAMONTE, TIRE SIZE P215/60R16. WHILE DRIVING 68 MPH, RIGHT REAR TIRE BLEW OUT, CAUSING SLIGHT LOSS OF CONTROL. *AK GOODYEAR EAGLE GA, DOT NUMBER T0X82JM22800. *JB

Nov 08, 2001

SUSPENSION

2 complaints

2001 MITSUBISHI DIAMANTE. WE HAVE HAD IT ABOUT SIX MONTHS. I HAVE HAD IT IN TO A VERY REPUTABLE SERVICE STATION AND HAVE COME UP EMPTY ON THE FOLLOWING PROBLEM. THE CAR HAS NEW TIRES, THIS OCCURRED BEFORE AND AFTER THEY WERE INSTALLED. DURING MORE AGGRESSIVE TURNING THE CAR GETS VERY UNSTABLE, BAD ENOUGH TO LOSE CONTROL. THE SERVICE SHOP CHECKED OUT ALL THE OBVIOUS FRONT END STUFF ALONG WITH THE THREE BUSHINGS ON EACH FRONT WHEEL ASSEMBLY. FOR THE MOST PART THE CAR TRACKS STRAIGHT DOWN THE ROAD AND IS SMOOTH AND TRUE. IT MAY BE DESCRIBED AS A LITTLE SOFT IN HANDLING BUT NOTHING SEVERE UNTIL THIS SITUATION OCCURS. THE SHOCKS AND STRUTS SEEM OK. THE CAR HAS 70,000 MILES? *TR

Mar 15, 2008

FRONT END ALIGNMENT IS OFF, CAUSING TIRES TO CUP/ MAKING STEERING VIBRATE, AND LOUD NOISES. REPLACED PARTS, PROBLEM STILL OCCURRING. *AK

May 07, 2002

POWER TRAIN,WHEELS,TRACTION CONTROL SYSTEM

1 complaint

I HAVE A 2001 MITSUBISHI DIAMANTE, AND AM HAVING PROBLEMS THAT SEEM TO RUN RAMPANT AMONG THIS MODEL/MAKE. MY HEATER CORE WENT OUT AT ABOUT 100K MILES; MY ABS LIGHT STAYS ON (DUE TO A SPEED SENSOR FAIL), WHICH RENDERS THE WHOLE ANTI-LOCK SYSTEM USELESS; AND NOW MY ANTENNA MAST IS BROKEN. ALL OF THESE PROBLEMS ARE PRICEY TO FIX, AND MOST DIAMANTE USERS I HAVE FOUND EXPERIENCE AT LEAST A FEW OF THESE CONFLICTS. ANOTHER PROBLEM I HAVE SEEN MANY COMMENTS ABOUT IS TRANSMISSION FAILURE AT 113K MILES. MY CAR HAS EXACTLY THAT. ON TOP OF EVERYTHING, IT IS WINTER, AND ANTI-LOCK BRAKES ARE MUCH PREFERRED IN ICY WEATHER. I AM STARTING TO SMELL ANTIFREEZE AGAIN, THE WARNING SIGN TO A FAILING HEATER CORE, WHICH CAN LEAK ONTO A TRANSMISSION COMPUTER AND CAUSE IT TO FAIL AS WELL. I AM BEGINNING TO WORRY ABOUT BEING STRANDED, AND EVEN BEING SAFE IN MY CAR. I KNOW I AM NOT THE ONLY ONE COMPLAINING, BECAUSE I HAVE BEEN ONLINE ALL DAY READING FORUMS FROM PEOPLE WITH SIMILAR ISSUES (SEE THE FOLLOWING: HTTP://WWW.CARSURVEY.ORG/REVIEWS/MITSUBISHI/DIAMANTE/R76426/COMMENTS/PAGE-5/). SOMETHING MUST BE DONE! *TR

Jan 21, 2011

SUSPENSION,TIRES

1 complaint

I AM FEELING A CONSTANT VIBRATION ON THE FRONT END OF CAR, AND I JUST REPLACED THE FRONT TIRES. I CHECKED TO SEE IF THE WEIGHTS ARE STILL ON THE RIM AND THEY ARE. ALL OF A SUDDEN I STARTED TO HEAR A VERY LOUD NOISE AND WHEN I PUSHED THE GAS PEDAL THE VIBRATION WOULD GET WORSE. *TR

Jul 25, 2007

SEAT BELTS

1 complaint

SEAT BELT ON DRIVERS SIDE OF OF 2001 MITSUBISHI, DIAMANTE HAS RETRACTED BACK INTO THE SIDE COLUMN RETRACTOR MECHENISM AND WILL NOT RELEASE BACK OUT. TOOK VEHICLE TO A LOCAL SERVICE REPAIR SHOP AND THEY DID NOT HAVE AN ANSWER. THE RETRACTOR IS A SEALED UNIT FROM THE MFG. AND CAN'T BE OPENED. IT APPEARS THAT THE RETRACTOR IS RIVITED TO THE VEHICLE FRAME. CALLED THE MITSUBISHI DEALER AND ASKED IF THERE IS A WAY TO RELEASE THE BELT AND IF THERE IS A RECALL. THEIR ANSWER WAS NO AND THEY NEEDEED TO LOOK AT THE CAR. I WAS TOLD IT IS NOT UNDER WARRANTY EVEN THOUGH IT IS A SAFETY ISSUE. I DON'T KNOW WHERE TO HAVE THIS REPAIRED OR REPLACED.

Mar 16, 2007

VISIBILITY,EQUIPMENT

1 complaint

RECENTLY PURCHASED A 2001 MITSUBISHI DIAMANTE WITH 62K MILES. ADMITTEDLY, I AM NOT CAR "SAVVY" RELATED TO THE WELL BEING OF THE CAR. WHEN PURCHASED, THE CAR HAD A "MAPLE SYRUP" TYPE SMELL. ALSO, THE WINDOWS FOGGED UP VERY QUICKLY AND EVENTUALLY I REALIZED THE HEAT TOOK A LONG TIME TO WARM UP. AS I PURCHASED THE CAR IN THE SUMMER, THE FOGGING AND HEAT PROBLEM WAS NOT NOTICED FOR TWO MONTHS. I HAVE NOW REALIZED THAT THE PROBLEM HAS TO DO WITH THE HEATER CORE. I HAVE TALKED TO PEOPLE WHO ARE CAR "SAVY" AND THEY SAY CARS SHOULDN'T HAVE PROBLEMS WITH A HEATER CORE UNTIL LATE IN THEIR LIVES (ABOVE 120K MILES), IF EVER. AS I DISCOVERED MY PROBLEM, I REALIZE THAT I HAVE BEEN INHALING ANTI FREEZE GAS THROUGH THE HEAT VENTS. I'M WORRIED THAT I WILL HAVE RESPIRATORY PROBLEMS BECAUSE OF THIS. HAS MITSUBISHI TAKEN RESPONSIBILITY FOR THIS SEVERE MISHAP? I HAVE RESEARCHED AND FOUND THAT THIS IS AN EXTREMELY PREVALENT PROBLEM IN MOST DIAMANTES. NOT ONLY IS THIS EXTREMELY DETRIMENTAL TO ONES HEALTH, IT'S AN EXPENSIVE FIX. IS THERE ANY HOPE FOR A RECALL HERE? *JB

Oct 12, 2006

ENGINE AND ENGINE COOLING,EQUIPMENT

1 complaint

MY CAR IS MAKING ME SICK. I PURCHASED MY CAR IN AUG. 2001 AND BEGAN TO NOTICE A SMELL IN THE CAR AND FUME CLOSELY RESEMBLING THAT OF RADIATOR COOLANT. THE CAR WAS ASSESED BY A MITSUBISHI DISTRICT MANAGER AND SERVICE PERSONNEL FROM MY DEALER AND DEEMED TO BE SOUND. IN THE MEAN TIME I HAVE SUFFERED WITH RUNNY EYES AND INTERMITTENT PARALYSIS IN THE RIGHT SIDE OF MY FACE DEPENDENT ON THE AMOUNT OF TIME SPENT IN THE CAR. I HAVE CONTACTED MITSUBISHI NUMEROUS TIMES ABOUT THIS AND RECEIVED NO ASSISTANCE. IN NOVEMBER 2004 I NOTICED AN INCREASE IN THIS SMELL AND FOGGING PROBLEMS OF THE INTERIOR WINDOWS. I TOOK THE CAR TO THE DEALER TELLING THEM THAT I BELIEVED THE PROBLEM WAS WITH THE HEATER CORE. I ASCERTAINED THIS INFORMATION THROUGH INTERNET RESEARCH DEALING WITH MITSUBISHI DIAMANTE DEFECTS AND PROBLEMS. THE CAR WAS RETURNED TO ME WITH THIS PROBLEM MORE SEVERE THAN WHEN I TOOK IT IN FOR REPAIR. ANY HELP OR IDEAS THAT YOU CAN OFFER WOULD BE GREATLLY APPRECIATED. *AK

Mar 05, 2005

Injuries: 1

STRUCTURE

1 complaint

BOTH REAR KNUCKLE BUSHING WERE SHOT ON 2001 MITSUBISHI DIAMANTE. *BF IT APPEARED THAT THE BODY OF THE VEHICLE WAS FALLING OFF OF THE FRAME. *SC

Jan 07, 2005

POWER TRAIN,VISIBILITY

1 complaint

1) SMELLED ANTIFREEZE BUT COULD NOT FIND A SOURCE. 2) HEATER COIL WAS LEAKING. 3) LEAKED ON A COMPUTER THAT CONTROLLED MY TRANSMISSION. WHY WOULD ANYONE PLACE AN ELECTRICAL PART UNDER A UNIT THAT HOLD A LIQUID? WHY WOULD THE ELECTRICAL PART NOT ENCASED IN A PROTECTIVE WRAP IF IT HAD TO BE PLACED NEXT TO A PRESSURIZED LIQUID CARRING COIL? 4) I WAS CHARGED $1,125.00 TO FIX A PROBLEM CAUSED BY SORRY ENGINEERING. I LEARNED THAT MISUBISHI KNEW OF THE PROBLEM AND NEVER NOTIFIED THEIR CUSTOMERS. THERE SHOULD BE A RECALL AND MITSUBISHI SHOULD HAVE TO PAY FOR THE REPAIRS. ALL PARTS, HEATER COIL, TRANSMISSION REGULATING COMPUTER WERE REPLACED.*AK

Sep 20, 2004

ENGINE AND ENGINE COOLING,POWER TRAIN

1 complaint

WHILE DRIVING TRACTION CONTROL SYSTEM COMPLETELY TURNED OFF WITHOUT WARNING, CAUSE UNKNOWN. *AK CONSUMER ALSO BEGAN EXPERIENCING INTERMITTENT ENGINE FAILURE.*SLC

Nov 27, 2001

POWER TRAIN,VEHICLE SPEED CONTROL

1 complaint

WHILE DRIVING THE ACCELERATOR PEDAL STUCK AFTER DEPRESSED DUE TO A FRAYED THROTTLE CABLE, IN ADDITION THE TRACTION CONTROL LIGHT CAME ON AND WAS BLINKING ON AND OFF(ATTORNEY FOR CLIENT). NLM

Feb 21, 2001

4.6/5.0

49 reviews

Frequently Asked Questions

How many problems does the 2001 MITSUBISHI Diamante have?

The 2001 MITSUBISHI Diamante currently has 79 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.

What are the most common problems with 2001 MITSUBISHI Diamante?

The most common problems reported for the 2001 MITSUBISHI Diamante are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

Where does this 2001 MITSUBISHI Diamante problem data come from?

All problem and complaint data for the 2001 MITSUBISHI Diamante comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.