Contrary to what we have been told about working on aluminum motors . Is it truth or fiction, that with those 5.4 Ford 3 valve motors, they seem to be the only engines that you ever would want to loosen up the spark plugs while the engine is still hot and to hit with an impact gun to do so ?????
Had more than one tech seem to believe so. I bet some one gave that plug a few raps with an impact gun and it didn't want to budge, so they said take it to Bob.
Had more than one tech seem to believe so. I bet some one gave that plug a few raps with an impact gun and it didn't want to budge, so they said take it to Bob.

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