And check engine light comes on and code is speed sensor and changed it still dont work has a 12.7 detroit when check engine light comes on I can't go over 65 mph
Cruise control on my 1998 peterbilt doesnt work
Discussion in 'Experienced Truckers' Advice' started by Nova1970, Jan 19, 2019.
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Might want to post a little more info about the truck.
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Check wiring and continuity.
Check sensor is turned all the way in, then 1-1/2 turns backed out (I think).
That’s all I got.BUMBACLADWAR Thanks this. -
i had a 89 379 with throttle up knob on drivers side floor by the seat. turn it and the speed would increase. push the red button and that would release cruise. didnt have no hit brakes and cruise would cut off. cruise only cut off when red button was pushed.
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truckdriver31 Thanks this.
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You may have 2 sensors one on top of trans also.
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Speed sensors I guess. I replaced 1 on the bottom fixed the speedometer as usual. Found out about the other a while later, on top it fixed the cruise. 99 Shaker Detroit / 13 spd
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