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1990 Jeep Comanche Pioneer 4.0L Misfire
Posted to Chrysler Driveability on 4/2/2004 17 Replies

This vehicle idles smooth and under heavy accelleration runs great. But under cruise load or driving away from a stop under "normal" load it brakes down. The problem is worse when it's cold. It actually backfires. If I get it really hot it's not too bad.I can ...

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car Vehicle Data

1990 Jeep Comanche Pioneer

VIN 1J7FT36L8L
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
SymptomsMisfire
OccursCold, Under Load, Cruise
Message Closed w/FIX

car Vehicle Data

1990 Jeep Comanche Pioneer

VIN 1J7FT36L8L
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
SymptomsMisfire
OccursCold, Under Load, Cruise