WHY DOES MY SPEEDOMETER GO HAYWIRE AND THE ...

  • Tiny
  • Anonymous
  • 2001 Oldsmobile Silhouette

Why does my speedometer go haywire and the vehicle downshifts on its own and constantly jerks

Monday, February 25th, 2013 AT 8:18 PM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,213 posts

Might be a problem with vehicle speed sensor? Have the trouble codes checked. Some of the national brand autostores will check codes for free. You can check codes youyrself, if you have an olbd2 code reader.

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Monday, February 25th, 2013 AT 8:52 PM

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