Full Downloadable PDF Instructions Available Here: http://riffraffdiesel.com/content/RESOURCES/High%20Flow%20Fuel%20CVD%20Fitting%20Instructions.pdf Parts Required: Riffraff Diesel High Flow Fuel CVD ...

On a 20+ year old 7.3, the harness usually doesn’t “die” all at once. It fails the annoying way: intermittent faults, weird codes, random driveability issues, and electrical gremlin ...

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.riffraffd ...

Oil pressure is everything for a 7.3L. One of the most common questions we get asked is related to how to test the High Pressure Oil Pump (HPOP) on a 7.3L Powerstroke. We say related to, because the ...

Ford’s stock 6.0L fuel system is what’s known as a “deadhead” system. Fuel enters one side of the head and hits a dead end at the other end, which contributes to hotter fuel a ...

At Riffraff, we stock the PHP Hydra Chip because it fixes the two biggest problems with old-school 7.3 tuning: not knowing what tune you’re on and being stuck with whatever tune was installed y ...

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 (f ...

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 ...

If you’re hunting a replacement front wheel bearing/hub assembly for a 1999–2004 Ford F-250/F-350 4WD, the first thing that matters is stud thread pitch. This Axiom unit is specifically f ...

If you’ve got oil pooling in the 7.3 engine valley (under the fuel bowl/HPOP area), the HPOP is always on the suspect list—especially the rear/end plug and the high-pressure discharge fit ...

If you own a 1994–2000 7.3L Powerstroke, you’re likely missing the benefit of the low-pressure oil mesh screen found on later 2001–2003 models. Most don't understand that the HPOP t ...

There’s dozens of recalls associated with our trucks. Some of these we’re all aware of, some are news to us, and some (the mass majority) truck owners were never even told about. It&rsquo ...

“Turbo mods” on a 7.3 Powerstroke aren’t limited to the turbocharger itself. Many turbo-related symptoms—slow spool, inconsistent boost, smoke, or elevated EGT—are cause ...

The 7.3L and 6.0L Power Stroke engines are somewhat unique in that they use oil pressure to run their fuel injection systems. The system was created with a joint venture between Caterpillar and Inter ...

On the list of common things that fail on 7.3’s, freeze plugs are fairly low; however, as these trucks grow in age, they’re becoming more and more common. Failure can occur in many ways, ...

Summer and the towing season are in full swing. With the temps getting ready to go even higher across the nation, we figured it’s a perfect time to talk about some cooling system components: wa ...

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 s ...

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 ...

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 ...