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  1. #1

    Question 5Lug 4WD upgrade-now no cruise?

    I have an 86GT I did a 5Lug 4wheel disc (03-04) Cobra Brakes, with a 93 larger Cobra booster. Brakes work great. The cruise control worked fine before the upgrade. No it doesn’t work. I put all new vacuum hose throughout. I bottomed the brake arm vacuum switch against it’s stop. It also has a NOS vacuum module in the drivers wheel well I installed a couple years ago. The fuse is fine. Im not sure what else to check. Has anyone else ever had experience with an issue like this you can give me a tip on? I had the idea perhaps the larger 93 Cobra brake booster is drawing more vacuum from the engine and the cruise control system isn’t getting enough to operate? But that’s really just a guess.

  2. #2
    FEP Senior Member Tigger's Avatar
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    May 2009
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    Interesting theory. I read that none of the 93 Cobra's had cruise control. Was not an option supposedly.
    67 Mustang Coupe
    96 Tangerine GT
    86 Saleen #179

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