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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Service, Diagnosis & Troubleshooting) >> Popping Noise

Popping Noise

WARNING: This page is about a different variant/trim than selected.
Popping Noise

Checks Action
DEFINITION: A popping noise, similar to popcorn popping
Oil Pump System
  • Check fluid level.
  • Inspect for pump cavitation, indicated by bubbles in fluid.
  • Inspect the transmission fluid filter for a leaky seam.
  • Inspect the transmission fluid filter seal for improper positioning or for a cut seal.
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