Compression Ignition Addict
Join Date: Mar 2011
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Cold Morning Smoke P0272
The past few mornings it's gotten down into the 20's here in Wisconsin and I've noticed several times after starting the truck in the morning it has a rough idle and begins pouring white smoke (not super rough but definitely some knock). I can't tell if it smells like diesel or oil really but after I start driving it goes back to normal and truck runs great.
After it happened again yesterday, I figured I'd check the mini-maxx for codes and sure enough I was getting a P0272 code on cylinder 4, though not sure why the mini was preventing the CEL from coming on. I reset the codes and got the same thing the next morning after starting. After seeing this I immediately took it to the local dealer this morning to have it looked at and to see if they could check the compression in cyl 4.
Well of course it's nice out this week and I get a call back from the dealer saying they can't find anything wrong. I asked if they did a compression test in 4 and he said it was only slightly off (though I haven't seen the actual report to see if they really did a compression test). My fear is that the injector is starting to stick and will eventually blow up cyl 4, or that something is mechanically wrong like a rocker arm going out.
Has anyone ever experienced similar issues in the cold or is it possible for the injectors to act up when it's cold out? I haven't been running a winter additive yet, plan on picking up a white bottle of kleen later this week.
Black 2008 F250 Lariat 4x4 6.4L CC Job3, DPF/DOC Delete, H&S mini maxx, S&B Intake, vista-pro radiator
Black 2010 Mitsubishi Evolution, UR, AMS