This is an engine problem post, not a suspension post. and other components that are high-stress or pressurized. It wouldn’t be uncommon to need to replace the turbocharger (surprisingly easy and cheap), a water pump, maybe the fuel pump, etc. Outside of the list mentioned, you should expect some maintenance as these trucks get older and pass the 200k mark. For the 7.3, it tends to be with wiring/electrical related components like sensors and things of that nature. Catastrophic engine failure is virtually unheard of, but every engine does have it’s weak spots. While I did list a lot of problems above with the 7.3, these problems are primarily minor and inexpensive to fix.
The 7.3 Powerstroke has a B50 Life of 350,000 miles, meaning 50% of engines last beyond 350k miles before failing. The engine block and internals on these engines were extremely over-built and over-engineered for the trucks power output, making it one of the most reliable and trustworthy diesels ever produced. When you hear the classic “yeah my buddy has a diesel with 500k+ miles on it at his ranch”, if it’s not a 5.9 Cummins, it’s a 7.3 Powerstroke. If you would rather consume this content via a video, check out our 7.3 Powerstroke Common Problems video below or on YouTube: With the exception of bent push rods (which isn’t really that common) most of these parts are sensors and valves that can be easily fixed. While I had to go with 7 problems to signify the 7.3, you’ll find that the majority of these problems are super easy and inexpensive to fix. Injection Pressure Regulator (IPR) Failure.Exhaust Back-Pressure Valve Failure (EBPV).7 Most Common 7.3 Powerstroke Engine Problems Known to be one of the most over-built diesel motors ever, there is no wonder Ford ended up producing nearly 2.5 million 7.3 Powerstroke’s by the time it was retired. 1999 models received a big power uprades, primarily with the addition of a wastegated turbo and an intercooler, increasing power output from 210hp and 425tq to 275hp and 525tq. Produced from 1994-2003, this monstrous 7.3L diesel went through two variations before being phased out in mid-2003 due to emissions regulations and more favorable gas mileage. It is no doubt the most reliable Powerstroke ever produced, coming in behind the 5.9L Cummins produced from 2003-2006. Outside of being the largest diesel engine ever put into high-production, consumer-grade trucks, it is also widely considered the 2nd most reliable diesel ever produced. The 7.3 Powerstroke is commonly referred to as the “Legendary 7.3”.
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