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1987 Mercury Grand Marquis LS 5.0L Excessive Emissions, Poor Idle Quality
Posted to Ford Driveability on 3/28/2000

hello everyone this is my first time posting on iatn so please be gentle. m y problem presented itself as a miss at all times until driven over 80kms the the problem clears up and will not show up again until the engine is shut [...] it [...] both o2 senso...

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car Vehicle Data

1987 Mercury Grand Marquis LS

VIN 2MEBM75FTH
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / efi
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways, Hot, Idle
Message Closed

car Vehicle Data

1987 Mercury Grand Marquis LS

VIN 2MEBM75FTH
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / efi
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways, Hot, Idle