1986 GMC BOUNCING SPEDO

  • Tiny
  • redneck1969
  • 1986 GMC

Drive Train Axles Bearings problem
1986 Other GMC Models V8 Four Wheel Drive Automatic

what would cause the speedo in my truck to bounce while driving

Thursday, April 1st, 2010 AT 10:24 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 42,077 posts

The cable is either hanging up in the sleeve or it needs to be lubed. If you are going to lube it use thin grease like lithium and take it apart form the top and pull the cableout that way. If you don't have the cable type then your speedo can be screwing up or you speed sensor is, but you may have a service engine light on.

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Friday, April 2nd, 2010 AT 3:14 PM

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