View Single Post
  #1  
Old 02-10-2014, 09:22 AM
dwh039 dwh039 is offline
New User
 
Join Date: Feb 2008
Posts: 12
dwh039 is starting off with a positive reputation.
rough idle when temp under -30

Everytime I start my 2011 f250 6.2, with ambient temperature at -30 or colder. I get an extremely rough idle for roughly 10 to 30 seconds in length. Sounds like it is running on only 4 cylinders, then you I will hear a popping noise and it idles normally after that. My guess is an exhaust restriction of some sort, maybe egr valve related. It never throws a code during or after the rough idle. Also doesn't matter if its plugged in or not. Any ideas? Also truck has roughly 100k miles on it.
Reply With Quote