GM / Chevrolet / GMC 6.6L Duramax
Duramax hard start & no start
Glow plug, fuel supply and sensor diagnosis for Duramax starting problems.
Why this matters on the 6.6L Duramax
Glow plug and controller faults, air in the fuel system and sensors are common hard-start causes.
Symptoms owners notice
- Long crank
- White smoke at start
- No start
What we check
- Glow plug resistance
- Fuel supply
- Sensor data
Repair work involved
- Glow plug, controller and fuel supply repairs
Trucks with the 6.6L Duramax
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