Lower Oil Pan Cleaning and Inspection

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Oil Level Sensor, Clip, Bolt & Oil Pan Mating Surface

Courtesy of GENERAL MOTORS CORP.

Remove the oil level sensor (1) and retaining clip (3).
Clean the lower oil pan (4). Remove any sludge or other deposits.
Clean the lower oil pan mating surface.
Inspect the lower oil pan (4) for dents or distortion.
Inspect the lower oil pan mating surface for damage.
Replace the lower oil pan (4) if any damage is found.
Install the oil level sensor (1) and retaining clip (3).