Oil Pump Body Bushing Replacement

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

J 41778-1: Pump Body Bushing Installer/Remover
J 41778-2: Pump Body Bushing Position Stop

Fig 1: Inspecting Oil Pump Body

GM1552939

Courtesy of GENERAL MOTORS CORP.

Inspect the oil pump body for the following:
- Worn or damaged bushings
- Foreign material or debris
- Porosity
- Scored or irregular mating faces
- Cross channel leaks

Fig 2: View Of Front Fluid Seal Retainer & Oil Seal Assembly

GM1552941

Courtesy of GENERAL MOTORS CORP.

Remove the front fluid seal retainer (244).
Remove the oil seal assembly (243).

Fig 3: Identifying Pump Body Bushing

GM1552942

Courtesy of GENERAL MOTORS CORP.

Using the J 41778-1: bushing installer/remover (1) with an arbor press, remove the pump body bushing (242).

Fig 4: Installing Pump Body Bushing

GM1552943

Courtesy of GENERAL MOTORS CORP.

Using J 41778-1: bushing installer/remover (1) with an arbor press, install a new pump body bushing (242).

Fig 5: Identifying J 41778-2 Special Tool & Pump Body Bushing

GM1552944

Courtesy of GENERAL MOTORS CORP.

Use the J 41778-2: bushing position stop (1) to ensure proper bushing depth.