Question about 1999 Chevrolet Silverado 1500

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98 chevy k1500 cruse control

Cruse control just stopped working fuses seem to be ok what else could be the problem

Posted by spoon 8 on

  • 2 more comments 
  • phillipstrin Mar 13, 2009

    I have a 99 chevy c/k truck and my cruse control just stopped working. The fuse's are good. I was told by a chevy dealership that it is the brake swtich. where is the brake switch and how hard is it to replace?


  • Anonymous Mar 26, 2014

    2007 vw touareg ruse control stoped working is there a fuse ?

  • Anonymous Mar 26, 2014

    2007 vw touareg is thera fuse for the cruse control?

  • Daniel Day
    Daniel Day Sep 20, 2018

    To Louie Role: Daniel Day, concerning the cruse control - thank you so much for all of the possible solutions.

    Back 40+ years I street raced, etc and did most of my own work. These days, even with my 2004, it is like reading Greek to know where anything is.

    You mentioned "most likely": vacuum line to the Actuator, diaphragm, control valve. I don't even know where that is. I imaging on the engine close to the throttle linkage? Am I close? Where could I go to get a picture or diagram of that so I know what I should be looking at?

    I cannot thank you enough for your taking the time to help me, Your awesome!

    Thanks again, Daniel



1 Answer

Louie Role

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Appreciate the "Ask Me".

To my knowledge, Cruise Control would be relatively difficult to diagnose without a scan tool attached to the control module to read the error codes. Additionally, car versions in my country seldom have such a device since our roads are narrower and travel distance is not that great.

Though most known causes are:

  • the connector to the module;
  • loose brake pedal/switch;
  • loose clutch pedal/switch (for manual transmission);
  • vacuum line to actuator (most likely), vacuum actuator, diaphragm, control valve.
Other possible components to check are:
  • the control module itself (bolted to the firewall);
  • control cable or linkage;
  • speedometer sensor;
  • steering wheel controls switches;
  • throttle position sensor.
As posted above, quite a number of possibilities. Any other indications, speedometer OK; abnormal throttle responses; abnormal idling, brake light always ON, slack in the accelerator/gas pedal? Was it cutting in/out before? Was there any recent repair work done on the engine before the cruise control cut out?

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 04, 2008

  • Daniel Day
    Daniel Day Sep 20, 2018

    Louie, thanks so very much for this wealth of information. I do not know if you received more questions from me that i sent to you, new to the site so not sure what/where to post thanks and more questions. I suppose this is it.
    Where is the vacuum line to actuator (most likely), vacuum actuator, diaphragm, control valve? Up close the top of the engine? I will look around. And WILL find it. I do not like to let things beat me haha. Thanks again for all the help!!!...Daniel



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