Quote:
Originally Posted by Ken07AOVette
The trouble is the cam valleys wear, and if you do not address that you still have issues. Apparently the only way to make the 5.4 a long life engine is to ensure the oil is changed religiously at 4000 km with ford oil filters every time, they have an anti-bleed back valve that the cheaper ones do not.
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I push the deletes at work. Had great luck,probably done 20 or more already. But like you mentioned there can be issues on certain engines. I cover my butt by always doing a mechanical oil pressure test. Hot. Gives a guy a good idea if spending money on the truck makes sense.