
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
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)30 Replies Received(Hide Replies)30 Replies Received
|
Message Closed
|
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 |
Message Closed
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 |