If you are replacing the HPOP on a 7.3L Powerstroke, having a step-by-step guide matters. These instructions cover the required parts, recommended tools, pump installation, IPR reassembly, oil refill,

If you’re working on HPOP lines on a 1999–2003 7.3 Powerstroke, this little tool is the difference between a 30-second job and potentially destroyed or leaking STC fittings (or ones that don't come ou

The 7.3L Powerstroke ran long enough that people started treating all of them the same. That is how wrong parts get ordered. A 1996 OBS 7.3 and a 2002 Super Duty 7.3 share the same basic engine family

If your OBS 7.3 has a belt chirp that keeps coming back, a squeal that shows up at idle, or a habit of wearing belts faster than it should, Ford already had a fix for it. TSB 98-23-14 applies to the 1

Troubleshooting Injection Control Pressure (ICP) or Injection Pressure Regulator (IPR) issues can be done with AutoEnginuity (Ford Enhanced) quickly. AutoEnginuity can be found here: https://www.riffr

If the non-serviceable plug at the bottom of your HPOP is leaking, the factory short-thread plug has likely stripped the threads in the aluminum housing. This long-thread replacement plug is made from

The 7.3 Powerstroke’s HEUI injection system relies on oil pressure to fire the injectors. Unlike most light duty diesel injection systems on the road today, where the pump (CP3, CP4, VE, VP, etc) crea

The PHP Hydra Chip is one of the most popular tuning upgrades for the 1994.5–2003 Ford 7.3L Powerstroke because it fixes one of the biggest complaints these trucks have from the factory: lazy drivabil

The 6.0L Powerstroke can tow extremely well, when it’s healthy. The problem is that towing exposes every weak link. Heat climbs, boost demand increases, fuel demand goes up, and the high-pressure oil

The 7.3L Powerstroke has a gift for making one leak look like another. Oil starts high, runs down the valley, follows the back of the block, coats the bellhousing, and suddenly everyone is yelling “re

The 6.0L Powerstroke gets blamed for a lot of things, but vacuum issues are usually not engine-performance problems. They’re usually 4x4 hub problems, HVAC mode problems, or electrical/vacuum control

The 6.0L Powerstroke doesn’t always need cab-off surgery to run better. Sometimes it just needs the weak links fixed before they turn into expensive problems. Before you jump straight to head studs, E

A 7.3L Powerstroke that cranks but won’t start does not automatically need a cam sensor, injectors, or an HPOP. It needs diagnosis. The 7.3 is simple compared to newer diesels, but it still needs four

“If your Ford isn’t leaking oil, it’s time to add more oil.” It’s a common saying, and as far as we’re concerned, it’s false. At least for the 7.3 HPOP. Leaks from the high pressure oil system are com

Riffraff Diesel 99-03 GTP38 Rebuild Instructions Riffraff Diesel 99-03 GTP38 360 Rebuild Instructions  Riffraff Diesel 94-Early 99 Bellowed Up-pi

If you’ve ever scraped factory RTV off a 7.3 and thought, “Why can’t all sealant work like that?”—you’re thinking of International T-442 RTV Silicone, part number 1830858C1. In the Powerstroke world,

Stripped out HPOP mounting bolts on your 7.3 Powerstroke? Don't worry, it's extremely common and no, you don't need to hunt for a new-to-you front cover (although our billet front cover is pretty neat

Fuel leaks on the 7.3 Powerstroke are one of those problems almost every owner will deal with sooner or later. While these trucks can seep fuel from a few different places, the fuel filter housing (fu

The legendary Ford 7.3L Powerstroke diesel is famous for being a reliable workhorse, but like any engine, it has its weak spots. One very common issue is leaking or damaged injector cups, which can le

The 7.3’s High Pressure Oil Pump is very reliable (fitting leaks aside…), but it can still fail or simply wear out over time. Diagnosing a failed HPOP can be fairly straightforward. Here’s some sympto