Wont run

Asked by Tim Dec 18, 2018 at 05:05 AM about the 2003 Chevrolet Silverado 1500HD LT Crew Cab 4WD

Question type: Maintenance & Repair

Reduce power

1 Answer
40,005

beatupchevy answered 5 years ago

maybe the catalytic is clogged , rev the engine and see if a healthy blast of exhaust comes out the tail pipe , scan for codes , see if injectors are firing normal , what do the plugs look like ,Is the exhaust white and there's goop under the oil fill cap then May be the head gasket is blown

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