gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 10322 > < Component Tests and General Diagnostics
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Diagnosis.  See: Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Contaminants-in-Fuel
Diagnosis

If the engine did not have low compression on any of the cylinders, replace the fuel injectors on the cylinders that had low cylinder power contribution,
high balance rates, or a noise/smoke change during cancellation.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

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Fuel Pressure Regulator Replacement

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Fuel Injector Replacement (Right) Fuel Injector Replacement (Left)  

Component Tests and General Diagnostics|Page 10322 > < Component Tests and General Diagnostics