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Lower Oil Pan Cleaning and Inspection

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.
    Fig 1: View Of Oil Level Sensor, Clip, Bolt & Oil Pan Mating Surface
    GM663624Courtesy of GENERAL MOTORS CORP.
  1. Remove the oil level sensor (1) and retaining clip (3).
  2. Clean the lower oil pan (4). Remove any sludge or other deposits.
  3. Clean the lower oil pan mating surface.
  4. Inspect the lower oil pan (4) for dents or distortion.
  5. Inspect the lower oil pan mating surface for damage.
  6. Replace the lower oil pan (4) if any damage is found.
  7. Install the oil level sensor (1) and retaining clip (3).
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