03 duramax check engine light emission control

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12-28-2010, 09:47 PM

timsgsx

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03 duramax check engine light emission control

i got a check engine light for emission control code wondering what i should check? truck is stock. would this include vacuum leaks or anything in that order? maybe an EGR type valve?

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12-29-2010, 08:58 AM

Rttoys

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Check the codes to see what general direction to go in. There are hundreds of codes, there is no sence in guessing until you know what code it is.

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