1992 Mercury Grand Marquis LS 4.6L MIL Lamp on, spark knock
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...
FIX posted 9/18/2006
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Message Closed w/FIX
Vehicle Data1992 Mercury Grand Marquis LS
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Message Closed w/FIX
Vehicle Data
1992 Mercury Grand Marquis LS
VIN | 2MECM75W3N |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | MIL Lamp on, Spark Knock |
Occurs | On Accel |