My speedometer does not work until I reach 30.

Tiny
CLIFF ROBERTS
  • MEMBER
  • 1998 DODGE RAM
  • 115,000 MILES
My speedometer does not work until I reach 30 mph, so my transmission will not shift out of low until my speedometer starts to work at 30 mph---how do I check the speed sensor? Can I take the sensor out and clean it, or will that help any?
Saturday, February 9th, 2013 AT 2:12 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,738 POSTS
Chances are the sensor is bad. They are inexpensive and easy to replace. As far as cleaning it, it may help, but chances are it won't. I have seen the cluster go bad as well.
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Saturday, February 9th, 2013 AT 2:15 AM

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