[331stroker]

I have had this problem for a few days now and I don't think it is just because of the new exhaust. The truck never smoked at idle but now when you look close enough, you can see a blueish haze from it smoking. The truck runs alright, so I don't think it's an injector. What could it be?

 

[WoodBoy]

You got to let us know more info. What do you have done to the truck? Miles? Year model?

 

[331stroker]

Truck is stock other than a 5" exhaust, 2006 with 100k miles and it's an xlt.