1991 GMC Sonoma speedometer

Tiny
RYANGATTS
  • MEMBER
  • 1991 GMC SONOMA
  • 6 CYL
  • 2WD
  • MANUAL
  • 200,020 MILES
My speedometer is electrical and cant figure out where to fix it. How can I solve this?
Saturday, March 27th, 2010 AT 11:07 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,600 POSTS
You have an electrical speed sensor on the transmission. Have that checked or cross the A &B plug on the ALDL and see if it has set a code by counting the flashes. You can go to the site here for trouble code definitions an dlook under OBD1.
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Saturday, April 3rd, 2010 AT 10:35 AM

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