occasionally engine idles at about 850 rpm and truck has lack of power and gas mileage drops
Is this a gas or diesel?
I had that problem on an old 1985 Cadillac 4.1 and the replacement computer cost me $100. Oh well. I hope yours can be diagnosed for free under warranty. Nothing like the old solid state electronics.
You really don’t want to put your companies contact info on a public website. Click on the little pencil to edit and remove it.
@cdaquila a little help here, please.
how often does this occur?
Are you aware of when your truck is doing a regeneration, and cleaning the soot out of the DPF filter? Could this be what is going on?
You beat me to it…
It looks like if you dont get out on the highway enough this could be a problem.