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CColin replied to the thread Need help: P0171 and P0174 codes.So, I wanted to post a preliminary update for anyone interested or having the same problem: The port with the broken cap (mentioned...
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CColin replied to the thread Need help: P0171 and P0174 codes.Thank you! Based on this picture, it almost looks like the cap was broken off from the neck-up on mine (which I think I've read that's...
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CTook Yukon (2010 XL 1500 w/5.3 liter engine) to shop to have rear main seal and pan gasket replaced. Got it back and it suddenly started...
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