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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Another reason it goes to high idle is the draw on the batteries from your grid heater. My old Ram would go to high idle even with the exhaust brake on in cold weather.
The block heater plugged in 2-3 hours would eliminate the need for the grid heater and automatic high idle feature. The cab would warm up faster too :w
The block heater plugged in 2-3 hours would eliminate the need for the grid heater and automatic high idle feature. The cab would warm up faster too :w
