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1992 Mercury Grand Marquis LS 4.6L MIL Lamp on, spark knock
Posted to Ford Driveability on 9/11/2006 21 Replies

This car pings on mild acceleration. It also has an intermittent check engine light that comes on but we are not able to get the processor to send us any codes. I know the scanner is communicating because you can do certain tests and the car goes through its p...

21 Replies Received (View Replies)

  Related Documents & Media  1992 Mercury Grand Marquis LS

 
Message Closed w/FIX

car Vehicle Data

1992 Mercury Grand Marquis LS

VIN 2MECM75W3N
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp on, Spark Knock
OccursOn Accel
Message Closed w/FIX

car Vehicle Data

1992 Mercury Grand Marquis LS

VIN 2MECM75W3N
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp on, Spark Knock
OccursOn Accel