Mechanically the 7.3 Powerstroke is solid. If you do have problems, the engine is typically easy and inexpensive to fix for the average Do-it-yourselfer. Some of the more common parts that need to be replaced are the IPR valve, the ICP sensor, the UVCH (Under Valve Cover Harness) or you may have a failed up-pipe connection.Whatever part goes wrong with your 7.3L Powerstroke you can count of ProSource Diesel to have it. We carry high-performance 7.3L Powerstroke turbos and 7.3 Powerstroke engine parts including one of our most popular products, the 7.3 Powerstroke turbo rebuild kit. Whatever Powerstroke part you need, you’ll find it at ProSource Diesel.