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1993 GMC C3500 5.7L Pings constantly
Hello guys, This truck has me puzzled. It was brought in because it pings constantly on acceleration. The computer in the truck will not back up the timing when it sees a knock sensor signal. I have replaced the knock sensor, the ECM, and the memcal in the...
FIX posted 2/15/2000
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Message Closed w/FIX
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| VIN | 1GDJC34K4P |
| Engine | 5.7 L / 8 cyl |
| Emissions | FED |
| Symptoms | Pings Constantly |
| Occurs | Always, Hot, Under Load, on Accel |
| Misc. | Stake Bed Truck, Dually, 4L80e Trans |
Message Closed w/FIX
Vehicle Data
1993 GMC C3500
| VIN | 1GDJC34K4P |
| Engine | 5.7 L / 8 cyl |
| Emissions | FED |
| Symptoms | Pings Constantly |
| Occurs | Always, Hot, Under Load, on Accel |
| Misc. | Stake Bed Truck, Dually, 4L80e Trans |
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