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1986 Toyota Pickup Speedometer not funtioning correctly

Tiny
JONNYBOY18
  • MEMBER
  • 1986 TOYOTA PICKUP
  • 4 CYL
  • 2WD
  • MANUAL
  • 246,000 MILES
When you are not moving the speedometer sets between 10 and 15mph. So while I am driving I have to kinda estimate how fast I am going by subtracting about 10 or so mph off. And once the speedometer gets to 70mph and over it wobbles. I am just wondering what may be causing this and if there is any easy way to fix this.
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Wednesday, August 25th, 2010 AT 10:49 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its cable driven inspect both ends/speedo head, if electronic check the vehicle speed sensor.
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Thursday, August 26th, 2010 AT 12:31 AM
Tiny
JONNYBOY18
  • MEMBER
  • 5 POSTS
How would I be able to tell if it is cable driven or electronic?
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Thursday, August 26th, 2010 AT 7:32 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the speedometer driven gear on the transmission if ok there, check behind the speedometer.
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Thursday, August 26th, 2010 AT 7:49 PM

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