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Faulty speedometer

Tiny
K8IVERSON
  • MEMBER
  • 1995 ACURA LEGEND
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 285,000 MILES
My speedometer stopped being accurate. If I want to go about 35, I need to show 28 on the speedometer. It is pretty consistently off in this way. (I'm basing this on road signs that show your speed). It does seem that once I get to around 60, it is more accurate (but I'm basing this on flow of traffic in the slow lanes). Odometer and RPM's seem accurate
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Tuesday, December 14th, 2010 AT 7:04 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Have you checked the vehicle speed sensor? Is the trans shifting properly?
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Tuesday, December 14th, 2010 AT 7:19 PM
Tiny
K8IVERSON
  • MEMBER
  • 2 POSTS
The transmission shifts fine. I haven't had the vss checked.
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Tuesday, December 14th, 2010 AT 7:41 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The vss is the first thing I would have checked. It is what creates the signal for the speedo.
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Wednesday, December 15th, 2010 AT 1:10 AM

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