F150 engine.
It has a very loud tapping noise in the top half of the motor. I was thinking lifters or blown spark plug. Still runs fine other then the noise. The ford dealer is telling me there are several problems with it. Low compression, spun crake bearing, cam bearing, and no compression in one of the cylinders. But it still seams to runs fine to me. I always trusted this dealer, it's where I bought it from.





