4.2 to 4.2 replacement problems
A friend purchased a 2008 F150 at a steal. Engine was blown. He purchased a replacement with 1800 miles from a local parts yard. Suppose to be exact replacement engine. Pulled it into my shop to help him out. Pulled engine and transmission. Serviced transmission and installed both. New engine will not start. Has gas and spark. Swapped crank sensor. Didn't help. About to go nuts. OBD II is useless. Any help, ideas or suggestions greatly appreciated.

