GM Service Manual Online
For 1990-2009 cars only

Popping Noise

Checks

Action

DEFINITION: A popping noise, similar to popcorn popping

Oil Pump System

    â€¢ Check fluid level.
    â€¢ Inspect for pump cavitation, indicated by bubbles in fluid.
    â€¢ Inspect the transmission fluid filter for a leaky seam.
    â€¢ Inspect the transmission fluid filter seal for improper positioning or for a cut seal.