GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2004
🢒
TopKick C-Series (Conventional) C4/C5
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Engine
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Engine Mechanical - 6.6L (LLY)
🢒 Piston Oil Cooling Nozzle Cleaning and Inspection
Inspect the piston oil cooling nozzle for damage.
Replace the piston oil cooling nozzle if any damage is found.