P1638 Diagnostic Trouble Code Discussion for March 2016
TCM Internal - CAN 1 RAM Performance
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| Help Request | Posted | |
| 2001 Chevrolet Silverado 1500 4.3L Excessive Emissions VIN: 1GCEC14W81 P1638: Generator 'F' Terminal Circuit Malfunction. ... Silverado 4.3v-6 that would not learn catilist monitor customer drove 900.00 miles sence battery,found rattling cat.replace cats and y- pipe with oem four new 02 sensors,was also running to cold so replaced thermostate, test drove 50.00 miles the way gm sa... |
March 03, 2016 |
