Guages not functioning

2004 GMC SIERRA
108,000 MILES • V8 • 4WD • AUTOMATIC
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RAFINK
  • MEMBER
  • 3 POSTS
Instrument panel (speedometer & amps) does not function. Sometimes it shows that I'm doing 90 when I'm at a full stop. The amp meter is pegged. What could be the problem? Same vehicle has problem with climate control not functioning. Is this related?
May 30, 2011 at 10:23 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
I'd check trouble codes, manufacturer specific as well as generic, before doing anything. The vehicle speed sensor could cause issues with speedometer, could be other issues as well. I'd also want to use a digital multimeter and check your charging system.

If it turns out to be an issue with instrument cluster, your dealership may have to fix it.
May 30, 2011 at 11:35 AM
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