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1988 Ford F-150 Custom 5.0L Poor Idle Quality, spark knock
Hi Folks, This vehicle will spark knock continously when the engine is under moderate to heavy load (including simply going up a hill at cruise speed). In addition to the below mentioned items I have checked the EGR system, MAP sensor, oxygen sensor, cleaned t...
FIX posted 5/13/1998
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| VIN | 1FTEF14N8J |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US FED EMISSIONS |
| Symptoms | Poor Idle Quality, Spark Knock |
| Occurs | Always, Under Load, on Accel |
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Vehicle Data
1988 Ford F-150 Custom
| VIN | 1FTEF14N8J |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US FED EMISSIONS |
| Symptoms | Poor Idle Quality, Spark Knock |
| Occurs | Always, Under Load, on Accel |
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