1993 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 1993 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
- Airbags1026.3%
- Brakes821.1%
- Transmission615.8%
- Engine37.9%
- Body & structure25.3%
- Driver assistance25.3%
- Heating & air conditioning12.6%
- Powertrain (other)12.6%
- Seat belts12.6%
- Suspension12.6%
- Tires & wheels12.6%
- Visibility12.6%
- Electrical12.6%
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
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
WHILE TRAVELING ON THE HIGHWAY WITHOUT PRIOR WARNING, THE DUAL AIRBAGS WENT OFF WHICH CAUSED HITTING A DITCH. PLEASE FILL IN ADDITIONAL INFORMATION DEALER IS AWARE OF THE PROBLEM. PH
WHILE DRIVING ABOUT 10 MPH REAR ENDED ANOTHER VEHICLE, AND AIR BAG DID NOT DEPLOY WITHOUT A PRIOR WARNING. *AK
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
OWNER HAS TAKEN VEHICLE TO SEVERAL DEALERS IN HER AREA DUE TO ENGINE MAKING NOISE. DEALERS WERE UNABLE TO FIX PROBLEM, BUT THOUGHT THAT BRAKES WERE THE CAUSE, AND REPLACED THEM SEVERAL TIMES. PLEASE DESCRIBE DETAILS. *AK
I AM HAVING PROBLEMS WITH MY BRAKING SYSTEM. I HAD MY BRAKES FIXED IN FEBRUARY 2001, IT IS NOW 10/2001 AND I HAVE HAD THE BRAKES REPLACED AGAIN. I AM A SAFE DRIVER AND DO NOT DRIVE DANGEROUSLY OR WRECKLESS. I DO NOT UNDERSTAND HOW WEAR AND TEAR OCCURED SO QUICKLY. MY FRONT END VIBRATES VIGOROUSLY WHILE BREAKING. STOPPING SEVERAL FEET PAST THE POINT WHERE I BREAKED. THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I HAVE TO STOP WAY AHEAD OF A STOP. ALSO, MY CAR SHAKES AND THE BRAKE PEDAL VIBRATES WHEN I TRY TO STOP. AS FOR THE TRANSMISSION, WHILE DRIVING, THE CAR IS IDLED WAY ABOVE THE POINT WHERE IT SHOULD. THE CAR GIVE A BIG THUMP AND THROW FORWARD WHEN I AM TRYING TO BREAK. THE TRANSMISSION IS MAKING FUNNY NOISE, AS IF I AM DRIVING 55 MPH WITH THE CAR IN NEUTRAL. AS FOR THE FUMES, THEY COME IN MY CAR AND IS VERY UNSETTLING. I CAN NOT STAND THE WAY THE FUMES SMELL. THE CAR IS ALSO SMOKING.*AK
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
I AM HAVING PROBLEMS WITH MY BRAKING SYSTEM. I HAD MY BRAKES FIXED IN FEBRUARY 2001, IT IS NOW 10/2001 AND I HAVE HAD THE BRAKES REPLACED AGAIN. I AM A SAFE DRIVER AND DO NOT DRIVE DANGEROUSLY OR WRECKLESS. I DO NOT UNDERSTAND HOW WEAR AND TEAR OCCURED SO QUICKLY. MY FRONT END VIBRATES VIGOROUSLY WHILE BREAKING. STOPPING SEVERAL FEET PAST THE POINT WHERE I BREAKED. THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I HAVE TO STOP WAY AHEAD OF A STOP. ALSO, MY CAR SHAKES AND THE BRAKE PEDAL VIBRATES WHEN I TRY TO STOP. AS FOR THE TRANSMISSION, WHILE DRIVING, THE CAR IS IDLED WAY ABOVE THE POINT WHERE IT SHOULD. THE CAR GIVE A BIG THUMP AND THROW FORWARD WHEN I AM TRYING TO BREAK. THE TRANSMISSION IS MAKING FUNNY NOISE, AS IF I AM DRIVING 55 MPH WITH THE CAR IN NEUTRAL. AS FOR THE FUMES, THEY COME IN MY CAR AND IS VERY UNSETTLING. I CAN NOT STAND THE WAY THE FUMES SMELL. THE CAR IS ALSO SMOKING.*AK
VEHICLE WOULD REMAIN IN LOWER GEARS WHILE IN NORMAL OPERATION, RUNNING RPMS UP HIGHER THAN IT SHOULD HAVE BEEN. CONSUMER TOOK VEHICLE TO A DEALERSHIP, WHO REPLACED TRANSMISSION FROM ANOTHER VEHICLE. VEHICLE OPERATED NORMALLY UNTIL SEPTEMBER 2000, WHEN TRANSMISSION WOULD REV UP TO EXCESSIVE RPMS AT SPEED BEING TRAVELED. PLEASE PROVIDE ANY ADDITIONAL INFORMATION/ATTACHMENTS.*AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
'93 MITSUBISHI DIAMANTE. BOUGHT IN '98 HAS SMOKED AFTER IDLING AT STOPS FOR YEARS AND I THOUGHT IT WAS NORMAL FOR THIS MAKE AND HAVE FOUND THAT A LOT OF MITSUBISHI'S HAVE THE PROBLEM ALSO AND WOULD LIKE TO KNOW THE CAUSE. MECHANIC'S SAY NEW ENGINE IS NEEDED, BUT NEW CARS ALSO SMOKE? COMPRESSION IS GOOD SO WHAT IS THE UNDERLYING PROBLEM? ALSO WILL NOT PASS DEQ WHICH IS ILLEGAL TO DRIVE WITH THAT MUCH SMOKE!*JB
OWNER HAS TAKEN VEHICLE TO SEVERAL DEALERS IN HER AREA DUE TO ENGINE MAKING NOISE. DEALERS WERE UNABLE TO FIX PROBLEM, BUT THOUGHT THAT BRAKES WERE THE CAUSE, AND REPLACED THEM SEVERAL TIMES. PLEASE DESCRIBE DETAILS. *AK
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
VEHICLE VIBRATES WHEN BRAKES APPLIED.
ADHESIVE HOLDING HOOD TO FRAME FAILS, CAUSING DENTS IN HOOD. *DSH
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
VEHICLE WOULD REMAIN IN LOWER GEARS WHILE IN NORMAL OPERATION, RUNNING RPMS UP HIGHER THAN IT SHOULD HAVE BEEN. CONSUMER TOOK VEHICLE TO A DEALERSHIP, WHO REPLACED TRANSMISSION FROM ANOTHER VEHICLE. VEHICLE OPERATED NORMALLY UNTIL SEPTEMBER 2000, WHEN TRANSMISSION WOULD REV UP TO EXCESSIVE RPMS AT SPEED BEING TRAVELED. PLEASE PROVIDE ANY ADDITIONAL INFORMATION/ATTACHMENTS.*AK
VEHICLE STALLED OUT UNDER HEAVY BRAKING CONDITIONS AND ALSO AT IDLE. THROTTLE BODY CLEANED AS REPAIRED. AUTO CONTINUED POOR IDLE. LATER, BATTERY BECAME FULLY DRAINED. WITH HEADLIGHTS ON AT HIGHWAY SPEEDS, ENGAGING BRAKES OR TURNING ON ANY CABIN ELECTRICAL DEVICE WOULD FLICKER AND DIM THE HEADLIGHTS. REPLACED BATTERY AND BELTS FOR REPAIR. ALTERNATOR TESTED OUT OKAY. POOR IDLING ATTRIBUTED TO LOW VOLTAGE TO IDLE SPEED MOTOR. CONTINUING ISSUE: ENGAGING BRAKES FLICKER AND DIM DASHBOARD LIGHTS. THE APPLICATION OF THE BRAKES(OR BRAKE LIGHTS, PERHAPS) INTERFERES WITH THE ELECTRICAL SYSTEM AND ULTIMATELY, ENGINE OPERATION. THIS SEEMED MOST EVIDENT WHEN VOLTAGE WAS AT A PREMIUM. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
ABS BRAKE LIGHT KEEPS COMING ON, SOMETIMES PEDAL GOES TO THE FLOOR. CAR ZIGZAGS IN THE BACK, AND EVENTUALLY STOPS. ALSO, DRIVER'S SIDE SEATBELT GETS STUCK IN THE RETRACTOR, EVENTUALLY IT COMES OUT/ AIR CONDITIONER WAS NOT WORKING PROPERLY BECAUSE COMPRESSOR AND CLUTCH WERE STUCK. MADE A LOUD NOISE.*AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
TRANSMISSON FAILED. OWNER BELIEVES IT WAS DEFECTIVE OR FLAWED TO FAIL AT 60K MILES.
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
ABS BRAKE LIGHT KEEPS COMING ON, SOMETIMES PEDAL GOES TO THE FLOOR. CAR ZIGZAGS IN THE BACK, AND EVENTUALLY STOPS. ALSO, DRIVER'S SIDE SEATBELT GETS STUCK IN THE RETRACTOR, EVENTUALLY IT COMES OUT/ AIR CONDITIONER WAS NOT WORKING PROPERLY BECAUSE COMPRESSOR AND CLUTCH WERE STUCK. MADE A LOUD NOISE.*AK
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
WHEN DRIVING OVER 30 MPH STEERING WHEEL AND VEHICLE SHAKES AND VIBRATES BADLY. ALSO, PULLS TO THE RIGHT. VEHICLE HAS YET TO BE TAKEN TO DEALER. *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
BRAKES OVERHEATED/CRACKED AND HAD WARPED WHEN APPLIED WHILE DRIVING. FOUND OUT THAT BRAKES WERE UNDERRATED ALONG WITH TIRES BY GOODYEAR. DID NOT KNOW ABOUT THIS UNTIL LATER. *AK CONSUMER STATES VEHICLE USES AUSTRALIAN GOODYEAR TIRES, GTA 205/65R15 H1530, TIRES WERE REPLACED WITH AMERICAN EQUIVALENT GOODYEAR TIRES AND WHILE DRIVING ON ARIZONA HIGHWAYS, TIRES WOBBLE AND BECOME UNSTABLE AFTER 15-20 MINUTES, 3 OTHER TYPES OF GOODYEAR TIRES WERE TRIED, HOWEVER ALL TYPES EXPERIENCED SAME SCENARIO, GOODYEAR HEADQUARTERS INFORMED CONSUMER THAT THE LOAD RATING OF THESE TIRES WERE ONLY 1400 POUNDS WHICH MAY BE INADEQUATE FOR THE 5000 POUND VEHICLE, THE HEAT FROM THE UNDERRATED TIRES STRESSES BRAKE ROTORS, VEHICLE HAS HAD 3 SETS OF ROTORS DUE TO OVERHEATING. *SLC
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
VEHICLE VIBRATES WHEN BRAKES APPLIED.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
WIRING HARNESS SHORTED OUT, CAUSING FIRE. *DSH
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 .