K 3500 Truck 4WD V8-379 6.2L DSL VIN C FI (1992)
Cold Advance System Diagnostic Chart
Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This step will determine if the problem is electrical or a malfunction inside the injection pump.
2. This step will determine if the ECM is able to turn "ON" the cold advance relay.
3. This step will determine if all factors are available for the cold advance relay to operate.
