2003 Chevy Avalanche guages

2003 CHEVROLET AVALANCHE
88,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
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 4:26 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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 1:42 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.