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  1. R

    Egr nut size question

    Ok, title sounds stupid but I have a 2004 LS 3.9L and last week the CEL came on with a P0402 code. Something to do with the EGR valve so since I had a 97 Mark and needed to replace that one towards the end, I figured just to order one and keep fingers crossed the valve is bad. Unlike the Mark...
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