Oil Pan Cleaning and Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inspecting Oil Pan

Courtesy of GENERAL MOTORS CORP.

Clean the oil pan in solvent. Remove all sludge and debris from the oil pan.

IMPORTANT: Do not use a motorized tool or bristle disc to clean this component.

Remove all sealing material from the oil pan rails.
Inspect the oil pan sealing surfaces for nicks or damage. Remove any minor nicks with a fine flat file.
Inspect the threads in the oil drain plug hole.
Replace the oil pan if necessary.