Hey guys back again with more questions ha. Just yesterday i hot my h pipe taken out on my 05 5.4l and i instantly noticed this "exhaust leak" noise coming from nean my engine so i thought they missed a spot on the weld... So i got under, looked and listened and its hard to tell but is seems like its coming from the cat on driver side.. Could it be were my o2 sensor goes in or could it be in the engine? Any advice to better narrow it down ? Thanks for yalls help

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Take it back to the shop that did the work, If they caused it, they should fix it, or at least tell you what the problem is.

 

You understood that ?

Hey, if he can't even write.....