2001 Mitsubishi Diamante Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2001 Mitsubishi Diamante, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Visibility5662.9%
- Engine1415.7%
- Transmission44.5%
- Brakes44.5%
- Tires & wheels33.4%
- Suspension33.4%
- Other / unspecified22.2%
- Seat belts11.1%
- Driver assistance11.1%
- Body & structure11.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
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
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
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
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
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.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
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
I BELIEVE THIS IS COMMON WITH BRAKE SYSTEM AND COULD EVENTUALLY LEAD TO FATALITIES. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .