Ford Mustang Forum - View Single Post - 2013 v6 engine sounds like a tractor. HELP!
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post #3 of (permalink) Old 05-25-2013
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RebelTX's Avatar
Joined: Feb 2013
Location: Orlando
Posts: 556
Did you check all your header and exhaust bolts? If the exhaust note changed but nothing else then I wood look for an exhaust leak. I have not herd of it but maybe you blew out the header gasket? Do a data log and look at the left vs rite O2 sensor if you can, there would be some difference in the 2 if the problem is pre-sensor

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