Cummins auto high idle question
On cold mornings the truck will go into a high idle after approx. two mins of starting. It does it automatically when it's cold, I'm not setting the cruise. Question is, a couple of times here lat...
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Intake temperature is used to determine high idle. Really cold initial starts will force it to high idle immediately. If left idling they will ramp back up. Even my '05 does this. Cold starts and it may go directly to 1k rpm, and it was so cold last year that after I got done running down the interstate (with car hauler trailer), I couldn't even get my side gate open before the truck ramped up even while the coolant temp was still above 180.
Your truck is fine.
Your truck is fine.
