Owner-reported complaints naming the engine system, filed with NHTSA
Data refreshed
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 1992 Mitsubishi Diamante submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
MITSUBISHI HAS PRODUCED 3.0 LITER V6 ENGINES FROM ABOUT 1990 THROUGH 1996 THAT EXHIBIT CHRONIC EXHASUT VALVE GUIDE FUNCTION DETERORIATION AFTER APPROXIMATELY 60,000 MILES. THIS RESULTS IN HEAVY OIL CONSUMPTION AND EVENTUAL ENGINE FAILURE.*AK THIS ENGINE WAS UTILIZED IN THE MITSUBISHI DIAMIANTI, 3000GT, DODGE CARAVAN, CHRYSLER TOWN & COUNTRY, PLYMOUTH VOYAGER AMONG OTHERS.
THE MOTOR MOUNT FAILED, WHICH CAUSED THE VEHICLE TO JERK HEAVILY.*JB
HELLO AND THANKS FIRST OF ALL FOR YOUR TIME, UNTIL JULY 5TH OF 1999 I TRUELY ENJOYED MY CAR. I WAS DRIVING ON I57 ON JULY 5TH AT 65 MPH AND MY CAR SUDDENLY LOST POWER. I HAVING ROADSIDE SERVICE CALLED FROM MY CELL PHONE A TOW TRUCK. THE TOW TRUCK DRIVER ARRIVED WHO WAS ALSO A REPAIR PERSON AND ALSO OWNER OF THE REPAIR SHOP. HE INFORMED ME HE WOULD TOW MY CAR TO HIS SHOP AND NOTIFY ME THE NEXT DAY OF THE REPAIRS. I BEING 1 1/2 HOURS FROM HOME HAD TO CALL A RELATIVE TO PICK ME UP. I WAS 11:30 PM I HAD NO WAY TO RENT A CAR. THE FOLLOWING MORNING MR LOY THE OWNER CALLED ME TO ADVISE ME THAT MY MOTOR HAD GONE OUT. I THE ASKED WHAT THE COST ANOTHER MOTOR WOULD BE I WAS ADVISED A USED MOTOR WOULD BE $2915. I THEN MADE ABOUT 50 CALLS TO OTHER SERVICE CENTERS TO FIND OUT THE $2900 WAS A FAIR PRICE. MY HAS ALWAYS BEEN WELL MAINTAINED. I WAS OF COURSE VERY UPSET TO FIND OUT BY ABOUT 35 OF THE 50 MECHAINCS I TALKED TO ADVISED ME, I YOU LET THE DIAMONTE IDEL IT WILL BURN OIL THEN WITHOUT NOTICE YOUR ENGINE WILL BLOW. I OF COURSE STILL OWING MONEY ON MY CAR HAD IT REPAIRED. ALONG WITH A $110 TOWING BILL FROM THE INTERSTATE. THIS ACTUALLY GETTS WORSE. IN NOVEMBER OF THE SAME YEAR(1999) THIS WHOLE ISSUED REPEATED! THIS TIME I WAS ON MY LUNCH HOUR AND MY CAR LOST POWER AGAIN. I HAD MY CAR TOWED TO A NEARBY IMPORTED SHOP. CERTAINLY KNOWING THIS TIME IT WOULD NOT BE A BIG REPAIR WELLLLLLLLL MY ENGINE HAD GONE OUT AGAIN!!!!!! THIS TIME LIKE THE FIRST TIME IN TEARS. THIS REPAIR FOR THE SECOND MOTOR COST MY $3200 . THANKS*AK
CONSUMER STATES THE FRONT AND REAR ENGINE SEAL AND PISTON RINGS ARE INOPERATIVE, THE VEHICLE SMOKES EXCESSIVELY.*JB
1. FRONT BRAKE ROTORS WERE REPLACED AT MILEAGE 82500 FOR PULSATION WHEN BRAKING. NEW ROTORS BEGAN TO PULSATE BEFORE 5000 MILES USE. ROTORS WERE TURNED AND TRUED BY DEALER AT 90,100 MILES, BUT BEGAN TO PULSATE AGAIN WITH IN 2000 MILES. 2. ENGINE EXHAUSTS LIGHT GREY SMOKE UPON ACCELERATION AFTER IDLING FOR 2 MINUTES OR MORE. ENGINE OIL CONSUMPTION ESTIMATED AT 1 QT/3000 MILES.
WHILE DRIVING VEHICLE WILL BE BURNING OIL, ON INTERNALCOMBUSTION AT ALL TIMES.*AK
CRACKED VALVE GUIDE SEAL FAILED CAUSING SMOKE TO COME FORM THE REAR TAIL PIPE.
WHILE DRIVING AND STOPPING AT A LIGHT, WHEN TAKING OFF SMOKE POURS OUT OF THE EXHAUST. WHEN SITTING FOR A LONG PERIOD OF TIME, THE SMOKE WILL BUILD UP AND COME OUT BY ITSELF. DEALER STATES A VALVE NEEDS TO BE REPLACED. *AK
BOTH FRONT DRIVER'S/PASSENGER'S SEAT BELTS DO NOT RETRACT. IF LEANING BACKWARD, SEAT BELTREMAINS IN A SAGGING LOOP, THEU DO NOT TIGHTEN WITHOUT UNBUCKLING THE SEAT BELT, REPLACED LEAKING VALVE COVER GASKET. *AK
ENGINE LEAKS OIL DUE TO VALVE COVER GASKETS FAILURE.
PURCHASE CAR USED THERE IS A NOISE IN THE CAR TOOK CAR TO THE DEALER SEVEN TIMES CAN'T FIND THE PROBLEM . TT
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.
Categories with enough reports to have a page of their own
Data on this page last refreshed .