Took my truck to two different dealers about blue smoke they say that every things okay. My truck now only intermittently smokes, and makes a funny clicking from the engine, its really rytimic. Bent Valve? Anyone know what the heck is wrong with my truck? its 65-80 here and my truck runs at just under 210, and gets 13-15 mpg, i do hit it but i also drive alot of highway. Anyone ever seen anything like this?

I am experiencing the same thing with my truck for the last 2 months.
Smokes white/blue on mild to heavy acceleration, mainly after stopping, and is heavier when making a turn. Outside and engine temperatures seem to make no difference either. Searched forums for similar problems and had dealer check out most of what was suggested here. They checked the closed pcv system for blockage or excessive oil. Turbo and intercooler tube were inspected for excessive oil and none was found. No history codes were found either.
Dealer and regional rep. could not find any problem and called it a "momentary richening condition which is considered a normal condition, truck operating as designed at this time".
This is obviously not a NORMAL condition, because it has not always done this.
Any help would be greatly appreciated.

Someone Help Us!!

Run a full tank of B20 or higher percentage of biodiesel.


I say this because if anything is stuck bio will unstick it.

Also while running the bio does the noise go away only to retrun when using #2 again?

If the noise goes but comes back I would say injectors.

read your manual, it says no more than 5% bio diesel in dmax

read your manual, it says no more than 5% bio diesel in dmax

5% will clean everything up just fine... 1.3 gals in a 26 gallon tank, 1.7 gals in a 34 gallon tank!