2005 6.0 Runs Bad when cold
#1
2005 6.0 Runs Bad when cold
Hi, I've been trying to figure out the problem with my 6.0 for some time now, when started in the morning and cold outside, the truck runs like crap, feels like it's running only on a couple cylinders. I have 97k on the truck, just got it back from Ford to have the EGR cooler and Oil Cooler replaced, was loosing water, I though that was the reason, seems like when I first got it back, it ran good, but it was still warm outside. It takes a good 5 to 10 minutes for it to really warm up and start running good. All other starts from that point are good unless it sits all day. Any suggestions? One last thing, if I plug it in and start it the next morning, runs like a top. Thanks
#6
I had that problem also with the rough starts in cold weather. Ford replaced the FICM in my case but it still did not resolve the issue. It wasn't until i switched to 5w40 synthetic mobil 1 turbo diesel formula that my issue was resolved. The 15w40 had to high of a viscosity. And since you had the cooler etc. Replaced that means that ford drained and filled your trucks oil. What do you normally run in it?
#7
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#9
#10
Precisely why I said to check what oil your engine has in it. Ford would use the Motorcraft 15W40 which is to heavy for cold climates. There is even a TSB for the 6.0's regarding oil viscosity and ambient air temperature. And of course your it's also in either your owner's manual or your engine manual.
#11
before you spend to much. i had the same trouble with my 03 and it only needed to be reprogrammed under recall. if it is injectors they would be rough all the time. the oil could be it but maybe call the dealer first. i went in with the engine light on and they told me that first and fixed it before they took care of the engine light which was a sensor unrelated to the rough idle.
#12
#13
I have an 05' as well. I was running 15w40 in and it started up as rough as can be. Only had it in there for 400 miles and I switched to Rot 5w40 syn. It was like night and day. Just went and got the new flash as well. Just cranked it up this morning at 20 degrees and it ran as smooth as you can get. The new flash addresses the cold start issue. The 05' has a recall on the ebp sensor as well. If you haven't gotten that, you might want to . They will flash it for you then. Might want to consider it. Hope all works out for you. Later,Eric
#14
when started in the morning and cold outside, the truck runs like crap, seems like when I first got it back, it ran good, but it was still warm outside. It takes a good 5 to 10 minutes for it to really warm up and start running good. All other starts from that point are good unless it sits all day. One last thing, if I plug it in and start it the next morning, runs like a top.
#15
I had that problem also with the rough starts in cold weather. Ford replaced the FICM in my case but it still did not resolve the issue. It wasn't until i switched to 5w40 synthetic mobil 1 turbo diesel formula that my issue was resolved. The 15w40 had to high of a viscosity. And since you had the cooler etc. Replaced that means that ford drained and filled your trucks oil. What do you normally run in it?