I have a 07 T800 that I run a rolloff trailer with. I use the high idle constantly to speed up the hydro pump. Lately the high idle turns off on its own for no reason. Sometimes the high idle cuts out many times while I’m running the hydros. Can’t figure it out. The cruse control has never acted up while driving down the road. Just the high idle. I’m lost and looking for suggestions. Thanks in advance!!
Need help.. cruse control/ high idle
Discussion in 'Kenworth Forum' started by mfd560, May 16, 2020.
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Clutch switch, park brake switch, service brake switch could all be intermittent culprits.
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Wouldn’t all those things also affect cruse control. Using cruse control hasn’t been an issue. Just high idle.
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blairandgretchen Thanks this.
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I might be looking at plugging to the ECM for a fault code read out, in case there was a parameter affecting the high idle.
Something is kicking it out.mfd560 Thanks this. -
blairandgretchen Thanks this.
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Certainly post the solution for future reference if you resolve it.
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