Trouble Ticket Help Requests for DTC P0642
|2004 Chevrolet Silverado 2500 HD 6.6L No Start, Hesitation, Misfire, MIL Lamp on VIN: 1GCHK242X4
P0642: 5-Volt Reference 1 Circuit Low Voltage. So far I have not reproduced the problem. Thinking about my codes and their order of importance to me, I'm thinking that I'm losing my 5 volt reference voltage at or within the fuel press sensor. The reason being that is 2 codes are saying low voltage and 1 fo...
|August 01, 2008|