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International Automotive Technicians Network
2003 Duramax Smokes, misfires.
Posted to Technical Discussion Forum on 9/2/2003 6 Replies

Hi all,

First I would like to say that this is a vehicle that I am not repairing, but simply advising a family member on. He has taken it in to the dealer for this problem and they put a fuel filter and air filter on the vehicle and said there were no codes ... Login to read more.

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