1990 Chevrolet C1500 Cheyenne 5.7L MIL Lamp on, pings
This vehicle initially came in for a check engine light. The vehicle had a new EGR valve installed (ACDelco). However, the code 42 returned. The customer brought the vehicle in after his guess at an EGR valve did not work. We diagnosed the problem as a ...
FIX posted 4/13/2018
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Vehicle Data1990 Chevrolet C1500 Cheyenne
Trouble Codes
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Vehicle Data
1990 Chevrolet C1500 Cheyenne
VIN | 1GCDC14K8L |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | Fuel Injection / tbi |
Symptoms | MIL Lamp on, Pings |
Occurs | Hot, Under Load |
Trouble Codes
43 | Knock sensor |