Oil Pump Cover Thrust Washer Inspection

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Measuring Thickness Of Thrust Washer

Courtesy of GENERAL MOTORS CORP.

Measure the thickness of thrust washer (1) at dimension A.
Specification: The minimum thrust washer thickness is 1.49 mm (0.059 in).
Replace the thrust washer if the thickness does not meet specifications.