2005 Duramax Smoking

[Outfitter17]

I Have a 2005 Duramax that was blowing a little bit of white/blueish smoke 2 years/ 60,000 miles ago. I took it into my local chevy dealer and they changed all the injectors right away. My problem now is it is smoking out of control now, you let it idle for a minute then drive away and I am affraid the people behind me are going to crash into each other due to the smoke. I have taken the truck to the same chevy dealer and they have charged me $277 each time to check the injectors, both times they just said they were a little dirty, but none were failing - so they can't be replaced under warranty? It is smoking 10 times worse this time, but they can't replace them now? They said just run some GM cleaner through them and they should clear up. Well 10 bottles and 5,000 miles later, it has gotten worse. The problem is I only have 17,000 miles left in my warrenty. Do any of you have any suggestions?

[LMITOUT]

Sure sounds like a bad injector. Do you have another dealer to take it to?

Could be bad cylinder too.

[deadeye]

I would get a hold of the service manager and have him/her look at it. It sounds like a pretty obvious problem so there shouldn't be a question that something needs to be fixed. Make sure you let them know you did room their recommended actions with no effect.

If they don't want to help get on the phone and go up the ladder from the dealer. Talking to someone at corporate will change attitudes quick!

[Outfitter17]

Sounds like a bad injector to me to, but no luck with the GM dealer. I talked to the service manager and the dealership manager, also with no luck. I am going to have it checked in Green Bay, wi. in september when I go visit the inlaws - it will be interesting if I get a different answer.