Pete 379 No jakes/Cruse/High idle? NEED HELP PLS

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Pete379yaar, Nov 14, 2023.

  1. Pete379yaar

    Pete379yaar Bobtail Member

    1
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    Nov 12, 2023
    0
    Alright needing some HELP!!

    The jakes/cruise/HIGH idle are not working on the truck (Pete 379). Previously the truck threw a code 241 for VSS. We switched wires from speedometer to ECM from the speed sensor and the code went away. Still no jakes or cruise.
    Replaced the speed sensor and the jakes and high idle worked for 10 mins and then stopped working again. I’m stumped on what else it can be. I’m pretty sure it’s not the clutch switch since it’s been cut and bypassed I believe. Im not sure if there is another speed sensor where the other wire can connect?
    Thanks in advance guys.
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    May 2, 2021
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    You believe it's been bypassed? You haven't verified that?
     
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  4. drewfarmsllc

    drewfarmsllc Light Load Member

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    Oct 18, 2008
    South Carolina
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    Beside the accelerator pedal there are a couple of air switches screwed in an aluminum block. Can't remember exactly which one but it's bad.
     
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