Speedometer reading inacurately

SATURN
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AVENGERXJ
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1996 Saturn SL2. My speedometer is reading consistently inaccurately. It reads about 10-15 mph less than my actual speed, and at a stop it drops below 0 (it would be around -10 if there were negative numbers). Is there a way to recalibrate the speedometer or is it faulty and I should replace the gauge cluster?
Feb 24, 2007 at 4:45 PM
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PEPPERMRJ
  • ✓ASE Certified Mechanic
  • 1,158 POSTS
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The gauges located in the instrument cluster (speedometer, tachometer, fuel gauge, voltmeter and coolant temperature gauge) are not serviceable. The entire cluster must be replaced as an assembly.

If there is no trouble code set I would suspect the guage. If there is a code you will need to test the vehicle speed sensor.

Good luck and let us know.
Feb 25, 2007 at 10:05 PM
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AVENGERXJ
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Replaced the entire cluster and everything works great.
Mar 11, 2007 at 7:23 PM
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PEPPERMRJ
  • ✓ASE Certified Mechanic
  • 1,158 POSTS
  • ASE Certified Mechanic
Thanxs for the update. I am glad for the positive outcome.
Mar 11, 2007 at 8:32 PM
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