2014 ,386 Pete (glider with Detroit engine) , cruise control and jake brakes not working properly.Cruise control is cutting off , the same with jake on and off . I believe is some of the sensor ,
Cruise control and jake brakes
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Vio, Sep 3, 2019.
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Take it to the shop.
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The reason being is that Jacobs in the engine generally is not a driver servicing item. The worst of it is either the fuse or the hammer to the relay box that fires the #### things. If you still have no jacobs, take it to the shop.
Im sorry but they build trucks to be driver proof last I checked. -
Brake pedal sticking and clutch pedal issue or clutch switch is most common. You need to hook up to see the response is correct for the appropriate switches in the ECM. Sometimes tapping on the side of or pulling up on each pedal will pinpoint the offender.........sometimes not.
Vio, spsauerland, x1Heavy and 3 others Thank this. -
There’s your clutch pedal switch ^ it’s located outside on the drivers side under the floor, it’s about 1ft to the rear of your starter. The switch spring pushes on the clutch linkage to make it work.
I believe the 2 wires in the harness have to make contact in order for the cruise to stay on. My cruise would randomly quit going down the road so I replaced the clutch switch and I never had an issue again
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