Question about 1997 GMC Jimmy

2 Answers

The cruise control just quit

The cruise control worked fine the last time I used it. Now it won't engage.
Also, the tach seems to register high rpms.
This is on a 97 GMC Jimmy.
I had a problem a few weeks back with what I was told was a speed sensor on one of the wheels. I was told to pull the fuse for the abs brakes, and this took care of the problem, but now I have other problems.

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  • k_mcbreen May 10, 2009

    This solution was helpful. I put the fuse back in, and now the cruise control works, and the tachometer is registering like normal. The transmission seems to shift better also. Thanks for your help. Now I know that I will have to get the speed senors on my wheels looked at. Hopefully that won't cost me an arm and a leg.
    Thanks again.


  • k_mcbreen May 10, 2009

    The original problem was sometimes when I am braking and turning, such as parking, the brake pedal doesn't move, and it seems to lock up the steering. If I let up on the brake and then step on it again, it will stop the car. I was told this was a malfunctioning wheel speed sensor. This was when I was told to pull the abs fuse. This stopped the braking problem, but caused my cruise to quit, and my tach to malfunction. Does this sound like a wheel speed sensor to you?

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By removing the ABS brake fuse you are disabling other components as well. The ABS fuse supplies voltage to the brake switch that tells the ECM and ABS module the the brake has been applied. If neither of the modules can see the brake switch the cruise control will be electrically disabled. You need to reinstall the fuse.
Let me know.
Regards,

Posted on May 10, 2009

  • Bruce Bracey
    Bruce Bracey May 10, 2009

    When this occurs, is there any kind of "growling" noise or pulsating of the brake pedal?

    It is however possible a wheel speed sensor is malfunctioning. Take you vehicle to your local Auto Zone and ask them to scan your truck for ABS trouble codes. They will do the scan at no cost to you. Write the codes down and respond back, we can go from there.

    Good luck, let me know.

    Regards,

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I would advise putting the fuse back in as it could be the same fuse that operates the cruise controll also.

Posted on May 10, 2009

  • proresearch May 10, 2009

    Glad I could help

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