Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

5. Use an approved method to clean the transmission to ensure the leak location is correctly identified. If using a powder method or dye method, ensure the products are compatible with the transmission fluid.

Fig 1: Transmission Fluid Leak Diagnosis Chart (Step 1-9)

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Fig 2: Transmission Fluid Leak Diagnosis Chart (Step 10-18)

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Fig 3: Transmission Fluid Leak Diagnosis Chart (Step 19-26)

Courtesy of GENERAL MOTORS CORP.