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1992 Mercury Grand Marquis GS 4.6L Spark Knock
car has spark knock on light to moderate acceleration after shifting to third gear have done all of the usual. tecnical service bulletins offered 1 that runs you through a series of checks and then says to repl. pcm and retest. just need to know that we di...
FIX posted 1/26/2000
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| VIN | 2MECM74W4N |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / EFI Multi-Port Inj |
| Emissions | US Fed. |
| Symptoms | Spark Knock |
| Occurs | Under Load |
Message Closed w/FIX
Vehicle Data
1992 Mercury Grand Marquis GS
| VIN | 2MECM74W4N |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / EFI Multi-Port Inj |
| Emissions | US Fed. |
| Symptoms | Spark Knock |
| Occurs | Under Load |
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