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7.3L Powerstroke HPOP Failure: Symptoms, Diag and their Fixes. (Post)
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
International T-442 RTV Silicone (1830858C1): the OEM grey sealant 7.3 owners actually trust(Post)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,
Exhaust Back Pressure Tube Issues for the 1999–2003 7.3 Powerstroke(Post)The 7.3 Powerstroke exhaust back pressure tube connects the passenger-side exhaust manifold to the EBP sensor mounted near the front of the HPOP reservoir. That tube lets the sensor read exhaust press
Diagnosing HPOP Issues on the 7.3L & 6.0L Powerstroke's(Post)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
Full Step By Step How To: 7.3L Powerstroke Stainless Steel Braided Fuel Line Kit(Post)Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Fuel%20Line%20SS%20Braided%20Hose%20Kit%20-%207.3L%2099-03.pdf Product Link: https://www.riffraffdiesel.
Riffraff Diesel OBS Heater Hose Bracket (1994–1997 7.3 Powerstroke): Stop the alternator-wiring rub(Post)On 1994–1997 OBS 7.3 Powerstrokes, the upper heater hose routing can get sloppy over time. When it droops, it doesn’t just look messy—it can rub on alternator wiring/connectors and create a wear spot
OBS 7.3 Powerstroke EOT Sensor Swap: Updating the Obsolete 1994–1997 Oil Temp Sensor(Post)Some 1994.5–1997 OBS 7.3 Powerstroke trucks used an early-style EOT sensor that is now obsolete. If your truck still has that old Engine Oil Temperature sensor and it fails, the correct repair is to u
Top Ten Most Common 7.3 Powerstroke Fail Items, And Their Fixes(Post)The 7.3L Powerstroke diesel (1994–2003) is widely regarded as one of the most durable diesel truck engines ever produced. Known for its longevity, simplicity, and mechanical reliability, the 7.3 still
Rebuilding The 7.3L Injection Pressure Regulator (IPR) - It’s easier than you’d think(Post)The HEUI system on the 7.3L Powerstroke uses high-pressure oil for the fuel injection event. We won’t fully go into the system’s specifics here, but good clean oil is very important to its operation.
7.3L Powerstroke - Exhaust Back Pressure Sensor Diagnosis(Post)The 7.3L Powerstroke doesn’t have too many sensors compared to more modern era diesel’s, but the ones it does have all play important roles. This week, we’ll be diving into the Exhaust Back Pressure S
6.0L Powerstroke Billet Thermostat Housing FAQ(Post)The stock 6.0L Powerstroke thermostat housing has one job: seal. And then, eventually, it… doesn’t. Corrosion + heat cycles = seepage. Riffraff Diesel has the fix: The 6.0L Billet Thermostat Housing.
WARN Premium Hub Set (38826): manual 4x4 hubs that actually stay locked(Post)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-metal constructio
Why It's Needed: 1999–2016 Super Duty Front Wheel Bearing Grease Tool (ABS Block Off Fitting) Dana 50/60(Post)Ford’s Dana 50/60 front wheel bearings (1999–2016 Super Duty 4x4) aren’t designed to be regularly serviced or greased—which is a big part of why unit bearings can feel like a “replace, don’t maintain”
Step By Step Installation: Ported Housing Compressor Wheel (Post)Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_Diesel_Ported_Housing_Instructions.pdf Product Link: https://www.riffraffdiesel.com/riffraff-die
7.3L Powerstroke Glow Plugs: Full step-by-step how-to replacement(Post)Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff%20Diesel%207.3L%20Glow%20Plug%20Replacement.pdf Product Link: Glow Plugs: https://www.riffraffdi
How and Why: 7.3 Powerstroke Fuel Rail Crossover FRx 99–03 (Post)The factory 1999–2003 7.3 Powerstroke fuel system is a deadhead setup: fuel enters the heads, feeds the injectors, heats up, and then has no real path out of the fuel galleries. That can leave trapped
Riffraff Diesel Billet Valve Cover Set for 1994–2003 7.3 Powerstroke(Post)The factory 7.3 Powerstroke valve covers do their job, but they are still thin stamped covers on a 20+ year old truck. When sealing matters, rigidity matters. That’s why we built the Riffraff Diesel B
Riffraff Diesel 7.3L Coolant Filter Kit 99-03 - How To Install (Post)Full PDF Instructions can be downloaded here: Riffraff Diesel 7.3L Coolant Filter Kit 99-03INSTALLATION INSTRUCTIONS Product Link: https://www.riffraffdiesel.com/riffraff-diesel-coolant-filtration-sys
Powdered Metal Rods: What are they? Why are they a problem? And how to check for them. (Post)Let’s talk about Powdered Metal Rods, or PMR’s as they’re more commonly called. If there’s one thing that causes the most damage to the 7.3L Powerstroke in one shot, the PMR is it. When these connecti
7.3 Powerstroke Up Pipes: Step By Step How To Installation(Post)Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_Diesel_Bellowed_Up-Pipe_Instructions.pdf Parts Link: Riffraff Diesel Bellowed Up-pipe Kit 94-Ea
