Smoking Duramax when idling

[jimwd]

Have a 2003 Duramax. Truck started smaoking over a year ago when idling and starting off. Have driven it 55,000 miles and have not lost power. Just smokes and does not use any oil. What could be causing this.

 

[86F2506.9]

Injector issues those are known for have them more than likely an injector they'll start smokeing and wont loose power but thats what i bet is wrong know a couple people that have had the same issues with there 03's

 

[tanman_2006]

I bet the injector cups are loose and letting just enough oil to drip by to cause smoke but not enough to change oil usage noticably. Injectors might still be good but the rule of thumb on a LB7 is if you have the injectors out you might as well find new ones.