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1991 Mercury Grand Marquis GS 5.0L Hesitation
Posted to Ford Driveability on 8/29/1998

Well, this is another post on the same vehicle which neverleft. Engine bucks and jerks hot on light throttle, heavyload, esp 30-40 mph and 50-60 mph, after I installed areman engine. Secondary all new and scopes well. ECT, ACT,TPS and MAP all checked OK, and k...

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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
OccursAlways, Hot, 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
OccursAlways, Hot, Under Load