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Noticed my truck smoking a couple weeks ago. First time was in the morning after warming up for about 5 minutes. Wasn't to bad in the driveway but on 5min drive to work it was smoking so bad i couldn't see the headlights of the cars behind me driving 50 MPH. Since then it hasn't been as bad but it does it periodically...sometimes when its cold, sometimes when its hot, but not all the time. Sounds like from the posts I have read it may be related to the EGR valve?
I sent a sample of oil into Blackstone Labs for analysis at my last oil change and they said "The only significant
change from last time was sodium, which isn't an additive in diesel-use oil, so it's possible that this shows a
small amount of antifreeze. Coolant usually shows up as both sodium and potassium, though, along with
higher wear, so we're not sure if that's the source. Watch your coolant level to be safe. If you're not losing
any, try 11,000 miles next oil and check back."
I have been keeping an eye on the coolant level and it doesn't appear to be going down.
The smoke appears white to me but it might have a "blueish" tint to it as described by some others.
Anybody else have experience with this same issue. Currently have just over 100K on my 2005 F-250.
Thanks in advance for you help and input