Oil Pump Disassemble

WARNING: This page is about a different car, the 2002 GMC Savana and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Remove the oil pump driveshaft and oil pump driveshaft retainer.

Fig 1: Oil Pump Driveshaft & Retainer
Courtesy of GENERAL MOTORS CORP.

Important: Do not remove the oil pump screen from the pipe. The pipe and oil pump screen are serviced as a complete assembly.
Remove the oil pump screen, if necessary. The oil pump screen has a press fit into the oil pump cover.

Fig 2: Oil Pump Screen
Courtesy of GENERAL MOTORS CORP.
Remove the oil pump cover bolts.

Fig 3: Oil Pump Cover Bolts
Courtesy of GENERAL MOTORS CORP.
Remove the oil pump cover.

Fig 4: Oil Pump Cover
Courtesy of GENERAL MOTORS CORP.
Remove the oil pump drive gear and the oil pump driven gear.
Matchmark the gear teeth for assembly.

Fig 5: Oil Pump Drive Gear & Driven Gear
Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to SAFETY GLASSES CAUTION .
Remove the following items:
1. 7.1. The oil pump pressure relief valve spring straight pin
2. 7.2. The oil pump pressure relief spring
3. 7.3. The oil pump pressure relief valve
Fig 6: Oil Pump Pressure Relief Valve & Spring
Courtesy of GENERAL MOTORS CORP.