2002 CHEVY AVALANCHE NOISE WHEN ALL-WHEEL DRIVE IS ENGAGED

  • Tiny
  • triway99
  • 2002 Chevrolet Avalanche

Noises problem
2002 Chevy Avalanche V8 Four Wheel Drive Automatic 44,510 miles

Developed noise problem when driving in 4-wheel drive, and driving above 18 mph. At highway speed the noise sound turns into a whining sound (e.G. Table saw running), however, as soon as the 4wd is turned off and put into 2 wheel drive, it disappears. It just started happening, I tried parking it in the garage for the weekend, because it was extremely could in Anchorage the last 2 weeks while I was on vacation, but that didn't seem to help.

Samantha

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Monday, January 11th, 2010 AT 6:06 PM

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  • Tiny
  • Scotty Dee
  • Member

Try changing the fluid in the front differential first. Use Mobil One 90/120 synthetic gear lube. I have solved a lot of noise problems that could not be explained by bearings etc. By doing this.

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Tuesday, January 26th, 2010 AT 12:15 PM

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