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are injectors in the 03-04 LB7's replaced for free like the 01-02's? thanks
 

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Yes and no. GM did put a 200,000 mile warranty on the 03 &04's. But they will only replace all 8 if they meet a certain criteria. Do a search you will find a load of information on the subject. I had 3 questionable injectors and they would only replace the 3.
 
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