2003 Chevy Avalanche guages

2003 CHEVROLET AVALANCHE
88,000 MILES • V8 • 2WD • AUTOMATIC
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GRISELTYE
  • MEMBER
  • 1 POST
my speedometer goes back and forth from correct to off by 20 or 30 mph, my rpm gauge is stuck all the way up to 6, and my gas gauge always says empty. HELP!!!
Mar 22, 2009 at 9:26 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi:
This could be a BCM, ground, or insturmentation problem. With the newer GM's, all gauges can be tested with a scanner to see if they work. I would start with that. If they work (with scanner), then I would have the BCM tested.

Joe
Mar 23, 2009 at 6:42 AM
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