White Smoke at Idle/Balance Rates [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: White Smoke at Idle/Balance Rates


SlowBalt
08-16-2010, 04:46 PM
My truck smokes white at idle and under hard acceleration makes black smoke on stock tune. It is not making any oil but smells of diesel real bad at idle also. it still gets good milage
Im thinking injectors for sure?

Heres my balance rates that I checked with my predator

Park Drive
1-.54 1- .15
2- 4.79 2- 3.83
3- .69 3- .44
4- 1.32 4- .94
5- .66 5- .12
6- .54 6- .24
7- .32 7- .48
8-1.13 8- .79

any help would be appreciated before I take it to the dealer as it is still under warranty till september

DuraTitus
08-16-2010, 05:47 PM
Did your predator have "mm" beside the balance rates? - If so, them are the pulse width rates, not the injector balance rates.

If them are actually the balance rates then it does look like it is time for new injectors.

White smoke at idle when the truck is warm is dead giveaway that the injectors are bad and sticking open.

As for taking it to the dealer, I would wait till you are about 2 week away from the end of the warranty, and then hopefully they will be bad enough to fail the fuel rail pressure, and return rate tests.

Good luck!

SlowBalt
08-17-2010, 08:41 AM
Ok it does say mm next to it so I guess they are not the balance rates

DuraTitus
08-17-2010, 08:51 AM
You need to find someone with a Tech 2, or EFI Live to check it out for you.