Oil Pump Locating Pin Replacement

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

Special Tools

J 43779: Locating Pin Installer

For equivalent regional tools, refer to Special Tools .

Fig 1: Using J 43779 To Install Locating Pins To Specified Height

Courtesy of GENERAL MOTORS CORP.

NOTE: Do not replace the oil pump locating pin or pins unless the pin or pins are damaged.

Remove the locating pin (2) from the oil pump body (3).

CAUTION: DO NOT mar the oil pump body surface when installing the locating pin(s). Tap gently on the locating pin installer tool. Heavy or continued hammering will damage the oil pump body surface.

Using J 43779: installer (1), install the locating pin (2) to the specified height.
Specification: The locating pin installed height measurement is 10.7-11.3 mm (0.42-0.44 in) above the oil pump body surface.