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1988 Mercury Grand Marquis 5.0L Hesitation, Surge, Misfire
Posted to Ford Driveability on 7/3/2004 14 Replies

Need some help with this Mercury 5.0 vehicle was towed in due to running bad. Test drove vehicle and started to break down as if it had a bad TPS. looses power at certain parts of Throttle position and then it's ok past half past throttle position. Checked TPS...

14 Replies Received (View Replies)

 
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car Vehicle Data

1988 Mercury Grand Marquis

VIN [No VIN Available]
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsCa. Emmisions
SymptomsHesitation, Surge, Misfire
OccursAlways, Under Load

Trouble Codes

41lean exhaust
91lean exhaust
Message Closed w/FIX

car Vehicle Data

1988 Mercury Grand Marquis

VIN [No VIN Available]
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsCa. Emmisions
SymptomsHesitation, Surge, Misfire
OccursAlways, Under Load

Trouble Codes

41lean exhaust
91lean exhaust