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ABS LIGHT ISSUES

Tiny
DEBKFOX
  • MEMBER
  • 2003 GMC SONOMA
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 68,000 MILES
When I start my truck, the ABS and brake light comes on. As I accelerate, the speedometer and tachometer jumps up and down and the engine revs like it is stuck in gear. It is using a lot more fuel. The speed sensor has been replaced. What else can I try?
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Sunday, July 6th, 2014 AT 5:08 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Is it shifting? Is the trans slipping? Has the check engine light come on? If the ABS light is on, have you scanned the computer to see if there are codes stored.

Here is a video to show you how

https://youtu.be/rTtAnsOlZU4

Please run down this guide and report back.
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Saturday, March 13th, 2021 AT 6:35 PM
Tiny
DEBKFOX
  • MEMBER
  • 2 POSTS
It is shifting and the lights come on after it is started then it starts with the jumping speedometer and the engine revving? So I changed the VSS and it fixed it
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Saturday, March 13th, 2021 AT 6:35 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
I have seen the vehicle speed sensor go out on those I should have thought of that. Nice work, we are here to help, please use 2CarPros anytime.
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Saturday, March 13th, 2021 AT 6:35 PM

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