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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spoon059 wrote:
If it feels that it is cold enough, it will automatically go into high idle. Sometimes it isn't quite cold enough, but after the truck realizes that you aren't driving it, r heating it up fast enough it will go into delayed high idle. Normal operation, nothing to concern yourself with.CampingN.C. wrote:
Also, I've read plugging it in isn't necessary at the temps we've been having but I'll start and see how it does. Maybe the kids won't freeze all the way to school in the am.
Plugging in isn't NECCESSARY until something like 20 degrees or colder... but it doesn't hurt much else besides your electric bill. I usually try to plug in below freezing, because it keeps the oil warmer, which allows for a faster start and less strain on the batteries. It also allows the truck to start cranking out heat much faster.
The newer dodges are good to go starter wise down to -20F without plugging in. If it were only 20F I would be in a lot of trouble as I often park mine where there is no way to plug it in. In places where it does get that cold you'll more than likely find that all of the diesel fuel at the pump is winter blend which you'll need to keep the fuel from gelling. The high idle when the computer is programed to do it is normal. On my 2015 it even decides how fast I can take off with the somewhat annoying torque management.
