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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Service, Diagnosis & Troubleshooting) >> Popping Noise

Popping Noise

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