please help,2001 f150 white smoke coming out of exhaust.
 

ok so heres whats going on, I have a 2001 f150 Screw 4.6. it recently started blowing white smoke out of the exauhst ONLY when revved in park after idling for a couple minutes. its not loosing water or oil and the temperature is perfect. it runs well but my mpg is AWFULL! 7-8 MPG. I also have two hollowed out cats and a flowmaster 40 muffler dumped if it helps any. if any one can help me shed some light on the situation I would REALLY appreciate it!!!!! :help::help:
thank you.


#project platinum

Do you have any codes? I am thinking that you are getting some bad readings from your sensors and the PCM is telling your engine to use more fuel. Those hollowed out CATs could be part of the issue.

No it's not throwing any codes which really throws me off, and the thing is that it'll only blow smoke when its revved after idling for a few minutes. Never when moving

Normal condensation build-up. I know the 98 will do that, if I treat it the same. Since I purchased it new in the fall of 98. It can get heavier at times dependent upon weather.

Ok I experimented a little more with the truck and it blows smoke not only when in park but also when accelerating from the whole in drive, however only when it's been idling for at least 5-8 minutes. After that initial puff it doesn't blow anymore until it sits in idle for another 5-8 minutes and accelerated again. I'm still not sure what's going on.

Also thank you guys for your input.👍🏼👍🏼

Also thank you guys for your input.

Also thank you guys for your input!