Kenworth t800, no bump idle

[joed2323]

Can the no bump idle be a ecm issue? Very weird how the jakes work, horn works everything on thr smart wheel but the bump idle.. I do not like bringing any truck to the dealer but im debating on it.

If it was the clutch switch the jakes wouldn't work.

Ive asked a few people, and the things they suggested I should try well, I already tried.

This truck is technically down since the drivers can not bump the idle up to run the pto at a higher rpm to load and unload crude oil