Join Date: Jan 2018
Feedback Score: 0 reviews
ICP Issue? IPR Issue? Other? Need help troublshooting.
I recently towed my camper up to the Great Lakes with the family (15hr road trip). No issues with the truck at all, ran like a top. A few days before we were getting ready to head back home I was driving the truck around town, and when I let off the gas and came to a stock light I noticed that the truck seemed to want to idle a little higher than it should....I took off from the light, and when I slowed down for the next light.....the truck started to idle super rough...chug, chug, chug, chug. It reminded me of when I had a wiring issue with my ICP sensor several years ago.
I didn't have my monitor going at the time, but when I got back to the camp site I scanned the truck....no codes. I drove the truck around for several more days....no issues, everything way fine. Very odd.
So we hooked up the camper and started to head home last weekend...while driving through town, I slowed down to make a turn....and I get the rough chug, chug, chug idle again...crap! My Torque PRO app showed the IPR rate jumping around 25-35% .....usually at idle it holds steady at 22.8%.
So I get back on the gas.....the motor smooths out, and runs great. 14 hours...all the way home....900 miles, several stops, not a single issue. Made it home with no issues.
So after I got home I checked the ICP sensor, it looked fine...no oil in the connector. The pigtail looked fine...no issues. As the truck was idling, I wiggled the wiring around...tapped on the sensor...nothing. Everything is fine. The ICP sensor is only about a year old.
Could this be a problem with the IPR?? Could it be getting "Sticky" at lower oil pressures required for idling? I hate issues like this that come and go....very hard to trouble shoot.
Where do I start?
2005 F250 6.0 PSD, ARP Studs, Felpro HG's, EGR Delete, IPR Coolant Filter, Bilstein 5100s, Blue Spring Mod, IDP Custom Tunes