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Discussion Starter #1
My 03 duramax starts hard like its flooded when the engine is warm and it smokes (black) at idle.
I had the balance rates checked and they were -2 to +4
I ran the injector cleaner from gm through it.
It didnt seem to help
any thoughts its probably bad injectors im thinking.

I also noticed that the top of the spindle where the upper ball joint attaches is rubbing on the inside of the tire.
It doesnt shake when driving
Im going to get it in the barn tonight lift it up and see if i can find anything.
any thoughts on that problem might be wheel bearing or because of the 4" lift does it need offset rims?
 

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Are you sure the smoke at idle is black? Sounds like injectors, especially if some are reading +4.
 

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Discussion Starter #3
The exhaust smoke is dark
 

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White or black? There is a big difference. I've never heard of injectors causing black smoke. I'd do a paper towel test, look it up.
 

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The white/blue smoke can look dark in the right light, especially if it is thick. Does your exhaust smell like raw diesel?
 

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Discussion Starter #8
the exhaust is worst when warm
and the ball joint i found out need a 3/8" spacer for the stock rim
 
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