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1991 Mercury Grand Marquis GS 5.0L Hesitation, Misfire
Posted to Ford Driveability on 8/26/1998

Here we go again. Car came in with low oil pressure andengine noises. Engine was poorly maintained. I installed areman long block and after it warms up, there is very badtip in hesitation/bucking under light throttle, heavy [...] is most noticeable at 30-40 mp...

  Related Documents & Media  1991 Mercury Grand Marquis GS

 
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car Vehicle Data

1991 Mercury Grand Marquis GS

VIN 2MECM74F6M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsHesitation, Misfire
OccursHot, Under Load
Message Closed w/FIX

car Vehicle Data

1991 Mercury Grand Marquis GS

VIN 2MECM74F6M
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsHesitation, Misfire
OccursHot, Under Load