07 kenworth t800 750,000 miles
Cummins ISX 18 speed
Vin# 7j206883
I’ve searched all the threads and either can’t find it or missed it with same problems.
jake, high idle and cruise only works when engine bay is cold/cool. After 25 miles down the road they stop working. Switches are still lit. Had the mechanic check switches and said they can all be operated via computer.
is there a relay or solenoid somewhere we are not seeing.
I feel like the problem was intermittent when it first started and has gradually came to where it is now.
There is a call into the Kenworth tech… been over a week with no answers found.
No jake or cruise after engine bay is warmed up
Discussion in 'Trucks [ Eighteen Wheelers ]' started by wilmes family farms, Jul 6, 2022.
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Does your "mechanic" have Cummins Insite or tool to monitor switches?
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Bean Jr. Thanks this.
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Co worker had a similar one that turn out to be a poor pin contact at the ecm plug, every thing worked find till it warmed up then quit. New pin in the connector fixed it.
spsauerland Thanks this.
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