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1986 Mercury Grand Marquis 5.0L Surge, Misfire
Posted to Ford Driveability on 4/17/2000

Problem seemed to occur after engine removal to replace all freeze plugs, oil pan leak and intake leak. Technician felt it would be easier to do with engine out of car. Egr was changed since propane introduced near it showed reaction in idle change and dic...

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car Vehicle Data

1986 Mercury Grand Marquis

VIN 2MEBP95FXG
Engine5.0 L / 8 cyl
Emissionsus federal
SymptomsSurge, Misfire
OccursUnder Load, at 40Mph in Overdrive
Misc.4Door
Message Closed

car Vehicle Data

1986 Mercury Grand Marquis

VIN 2MEBP95FXG
Engine5.0 L / 8 cyl
Emissionsus federal
SymptomsSurge, Misfire
OccursUnder Load, at 40Mph in Overdrive
Misc.4Door