Bad performance in cold weather
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New User
Joined: Feb 2010
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Bad performance in cold weather
I have a 2006 F250 6.0L. I live in GA and it has just started getting cold. I let my truck run in the morning for around 15 - 20 mins before I take off. It will hesitate real bad sometimes even when the temp gauges are normal. When I park during the day in 30 - 40 degree weather, it will act the same. Sometimes having no power going up small hills and I even see a light blue smoke cloud from the exhaust. It looks like diesel fumes and not EGR water vapor. Any suggestions? No mechanic can figure it out, because it will not give any error codes.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
What oil brand and weight do you use? Probably 15w40 non synthetic?
IMHO it's probably some injector stiction (search "stiction") or oil latching and won't always throw codes. You might try some fuel treatment, but it's probably NOT going to help your issues. You might try a product called Rev-x. It helps injector stiction tremendously in most cases. Do it at your next oil change 2-4oz bottles--$68 for a superduty. Might take it a few miles to work but it DOES work.
IMHO it's probably some injector stiction (search "stiction") or oil latching and won't always throw codes. You might try some fuel treatment, but it's probably NOT going to help your issues. You might try a product called Rev-x. It helps injector stiction tremendously in most cases. Do it at your next oil change 2-4oz bottles--$68 for a superduty. Might take it a few miles to work but it DOES work.
