Discussion Starter · #1 ·
I've been trying to figure out why my truck RPM drops low and then has a rough idle after stopping while driving with OD off at 60-65 MPH, especially while towing the camper. It runs great in OD at 70 MPH and idles fine when I come to a stop, even towing the camper. This seems to be related to running at high RPM/Heat. I changed the CPS and the IPR. I did a 3300 RPM run in park for 3 minutes to check for Oil Aeration, and when I let off the throttle at the end of the test, the truck dies. (See Data Log) It will start right back up, but runs a little rough compared to before the test. I would be happy to log other parameters if someone thinks it would help them diagnose. Please Help...I'm at a loss.
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