Smoking 6.6

[all clean]

Just bought a 04 3500 dually wiyh a 112,000 miles. I purchased it on e-bay. When i went to pick it up ,it had white smoke at a idle.Was told that dealer checked out and said it was dirty fuel.6 tanks later still smoking.Had it checked at local garage,#3 injector misfire. Replaced injector ,but now it smokes more than ever. Had test done on all injectors and all was good.I am trying not to take to dealer.Please help.

[More Power]

Need to check injector balance and possibly compression pressures, though an injector balance test could also show a weak cylinder. The ECM will attempt to add fuel to a weak cylinder to equalize all eight cyls.

If you have access to a cooperative dealer service department, you might try getting a warranty history on this truck. Might illuminate something the previous owner forgot to mention.

Jim

[all clean]

Checked injector balance. All injectors are are.3 at 1500rpm.