GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
Envoy - 4WD
🢒
Engine
🢒
Engine Mechanical - 4.8L, 5.3L, and 6.0L
🢒 Oil Pump, Screen and Crankshaft Oil Deflector Removal
Remove the oil pump screen bolt (3) and nuts (2).
Remove the oil pump screen (1) with O-ring seal (3).
Remove the O-ring seal from the pump screen.
Discard the O-ring seal.
Remove the remaining crankshaft oil deflector nuts.
Remove the crankshaft oil deflector.
Remove the oil pump bolts.
Important:
Do not allow dirt or debris to enter the oil pump assembly, cap ends as necessary.
Remove the oil pump.