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Speedometer failing, check engine light

Discussion in 'Chevy Trucks' started by kimokeo, Aug 10, 2004.

  1. kimokeo

    kimokeo Junior Member
    from SC
    Messages: 2

    89 Chevy Pickup speedometer drops to zero about 10 miles down the road. Check engine light comes on, and brake light blinks code 9. After truck sets for awhile the speedometer will work again and reproduce problem while driving. I've replaced my speed sensor but the problem returned after clearing the codes. What is next? Also, the odometer quit working several months back, could this be a connection to my problem. Thanks, Kimo
  2. gcsupraman

    gcsupraman Senior Member
    Messages: 110

    I had the same problem but my ses light gave me the vehicle speed sensor code.

    I also had my cluster rebuilt. You could get your cluster rebuilt at any GM dealer for about $250.00. After I replaced both of those the problem was history.

  3. kimokeo

    kimokeo Junior Member
    from SC
    Messages: 2

    speedo fixed

    Just as described by greg, I had my instrument cluster rebuilt at the local chevy place and life is now good :) :)
  4. jebx

    jebx Junior Member
    from MN
    Messages: 7

    I'd reccomend going to your local public library and looking at the service manual. It will have a procedure for dianosing a code 9. I am unsure off the top of my head what that specific code is. A scantool would be useful to see if thwn this happens the ECM is recieving the VSS signal and reading a speed. I am guessing no becuase of the DTC. If you determine it is the cluster it is a easy repair to do yourself, and you might be better off getting a used one. I picked one up for $50 for an 89 about 4 years ago, so I can imagine the price has only dropped.