In 1995 Ford began implementing the OBDII system in most of their vehicles. By 1996, due to a federal mandate, all vehicles were using the system. OBDII or On Board Diagnostics 2, gave us tons more d ...

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 fro ...

On a 7.3 Powerstroke, the oil cooler “assemblies” (aka headers or mounts) aren't just end caps—they're the oil filter base, and the in/out for oil and coolant into the cooler. It&rs ...

7.3L Powerstroke owners have always been ridiculed for marking their territory (i.e., leaking oil, leaving spots wherever they park). We’re going to plead the Fifth on the validity of that stat ...

If you’re replacing a tired and/or leaking factory lower degas coolant hose on a 2003–2007 6.0L Powerstroke, these are the direct-fit upgrades: Mishimoto Degas Lower Overflow Hose (MMHOSE ...

The 7.3L Power Stroke’s HEUI system runs on high-pressure oil, and the Injection Pressure Regulator (IPR) controlls how much oil the HPOP actually sends to the injectors. When the IPR is happy, ...

If a 1999–2003 Ford 7.3 Powerstroke is leaving oil in the valley, one of the first suspects is the high-pressure oil (HPOP) hose and its STC quick-connect fittings. The upgraded Riffraff HPOP J ...

Replacing old worn out and/or leaking HPOP lines can be a stressful endeavor. They're one of the more common leak points on a 7.3, and most of us have battled leaks here over and over again. After th ...

The High-Pressure Oil Pump (HPOP) is the heart of the HEUI (Hydraulically Actuated, Electronically Controlled Unit Injector) fuel injection system used on both the 7.3L and 6.0L Powerstroke. When the ...

7.3 and 6.0 Powerstrokes use an injector cup that is pressed into the heads, plus a series of O-rings on the injectors to keep coolant, oil, and fuel, plus combustion gases, in the areas they’r ...

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 ...

Oil and fluid leaks are just part of life when owning an older diesel. But they don't have to be permanent. Stop your 6.0L Powerstroke from marking it's territory, this list of the most common fluid ...

The Cam Position Sensor (CPS) on all 7.3L Powerstrokes can be its Achilles heel. This sensor tells the PCM where exactly the rotating mass is in its journey. Without it, or with one that isn’t ...

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_Diesel_7.3L_Injector_Replacement_Instructions.pdf Parts Required: Injector O-ring Kit: Part# A ...

If you’re done trusting (and fighting) the aging factory 4x4 hubs (or anything with plastic where it shouldn’t be), the WARN Premium Hub Set (38826) is the industry-standard fix: all-meta ...

The Banjo and Hutch (aka Hutch and Harpoon) mod were one of the first "budget" mods for the 7.3L Powerstroke. The Harpoon mod when done, allows for more complete fuel fill up's by removing a portion ...

Injectors are not all built the same, especially for the 7.3. Sizing varies year by year, and for a few, based on the location sold, too. Split shots, single shots, hybrids, AB, AD, 238/80, there's s ...

When upgrading a 7.3L Powerstroke (1994–2003) for more power, one of the first hurdles is the PCM’s built-in overboost limit, which is typically around 23–24 PSI. Exceed that, and t ...

Recommended Parts: Injector O-ring Kit: Part# AP000: https://www.riffraffdiesel.com/alliant-injector-o-rings/ CCV O-ring Kit: Part# GZ-8-004: https://www.riffraffdiesel.com/ccv-vent-cover-orings/ &nb ...

Riffraff Diesel 99-03 GTP38 Rebuild Instructions Riffraff Diesel 99-03 GTP38 360 Rebuild Instructions  Riffraff Diesel 94-Early 99 Bellowed Up-pipe Install Instructions Riffraff Diesel 99-04 ...