'10 Blowing blue smoke during regen - Ford Truck Enthusiasts Forums



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'10 Blowing blue smoke during regen

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Old 05-04-2010, 02:48 PM
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'10 Blowing blue smoke during regen

I have 8900miles on the truck now, and today was the first time I noticed I was billowing smoke out the back while it was in regen.

I was idling at a stoplight for a couple minutes as it was in regen mode in front of a hill and it seemed ok, but I was spewing bluish smoke the whole way up the hill. It was hard to see what color through my sunglasses, but don't think it was steam from the way it dissipated. Once I made it over the hill it going no more than about 40mph and back down, it continued to regen for the next 20min on the freeway with no incident.

No stumbling or drivability issues that I noticed. It seemed to run just as raspy as usual when regening.

I think I've read some guys complain about the same, but never saw any conclusion other than replacing the CAC or EGR to fix steam(?). Someone mentioned the dealer said it was normal. I don't remember the manual mentioning anything about leaving clouds of smoke during regen.

Last oil change was about 3500miles ago. I've been using to the same Shell or Chevron
fuel stations. mpgs have been consistent. It's been pretty dry and 60F~70F outside. Humidity isn't an issue around here in SJ.

Any ideas?
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Old 05-04-2010, 02:55 PM
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Mine does the same thing during regen, blueish smoke. It only does it for around a minute and then the rest of the regen cycle is pretty uneventful.
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Old 05-04-2010, 04:17 PM
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Normal operation at this point. I had that happen to me one time, not blue smoke as I was at speed when it occurred and the exhaust cleaned up within a 1/4 of a mile.

Regens and traffic do not mix well.

Be sure you are checking your oil level weekly.
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