2005 5.4 runs rough exhaust leak?
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2005 5.4 runs rough exhaust leak?
Grandson's 5.4 ,2005, missing, running rough using a big amount of fuel. Threw one code, PO 301 then erased it. Found a good size hole in the exhaust before Cad Converter. Would an exhaust leak cause rough running? Removed battery cable to reset computer. Ran find for a while then back to rough. I suppose the computer sees the problem and adjusts to a rich mixture causing the misfires. Any help would be greatly appreciated. Thanks T
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