I own a 2001 F-150 4x4 offroad nice 5.4. About 3 months ago started hearing what seamed to be a lifter tap or exhaust manifold leak. Then tonight taking off from a read light truck began to sound like a tank and lost all ***. Under inspection I had BLown the Spark plug out of the head on the # 5 cylinder.
My questions are; Expensive fix? Could it have damaged the cylinder and/or piston (there was no gap left on plug, although still intact)? And could that have been going out for a while and that was what I thought was a lifter tap? Any imput would be greatly appreciated