Car Problem Reports

Mitsubishi Diamante The automatic transmission may fail prematurely

Mitsubishi Diamante Problem
13 Reports
Me Too

Model Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2001

Average Mileage: 101,400 mi (65,000 mi - 152,500 mi)


The automatic transmission may fail prematurely requiring overhaul or replacement of the transmission.

  • Visitor, , 69,300 mi

    Trasmission stopped working in all gears while travelling at 40 mph. Engine ran, but each gear felt like I was in neutral. Problem was a spring which cracked and set off a chain of events which killed the pump and other key components. Mechanic said the disc type spring was of inferior quality. Tranny had to be completely rebuilt including replacement of upgraded spring.

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  •  Rookie

    We bought this 2001 Mitsubishi Diamante LS from a used car lot and it is a piece of shit. The Transmission went out 60-90 days after we bought the car for my son. We have put I don't know how many other transmissions from 2001 Mitsubishi in this car and they all have the same problem. To install a rebuilt transmission is $2600.00 and that is more than the car is worth. Every where you read on line you find the same story, the 2001 Diamante has transmission problems. Why hasn't there been a recall?

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  • Visitor, , 152,500 mi

    When accelerating from a stop sign or red light, fails to shift in to first gear, slowly shifts to 2nd 3rd and 4th gear, sometimes shifts hard enough in to 2nd that it will spill your coffee. Pump has taken a poop a couple of times. Repeated drive, timing, power steering, AC BELTS all REPLACED SEVERAL TIMES, alignment failure repeatedly. A rebuild is imminent.

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  • Visitor, , 130,000 mi

    I am now on my third transmission, there must be some design problem!

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  • Visitor, , 65,000 mi

    My car showed no signs before transmission went out........Had to replace, the day after I got it back with new transmission....the starter went out.

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  • Visitor, , 126,000 mi

    Same thing happened

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