Q: m y mechanic put a 5.4 3valve reman into my 2007 lincoln navigator.
He said he's done every external thing he can,but cylinder banks 1 thru 4 are showing misfires. I live in Michigan and bought the motor online in Arizona.He's doing a compression test today.Is there anything else he can do to fix this mis fire problem. Any advice will help. Thank You,Tim G.
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