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 takes it's supply di

Good clean oil is extremely important to a 7.3L. Moreso than for most other engines. That's because the oil is used differently than with most other engines. The 7.3L injection system is more like a h

The front wheel bearings on Dana 50 and 60 axles are not designed to be serviced or greased regularly. This lack of serviceability reduces their lifespan. We've found that adding grease at regular i

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 JIC line

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’re suppo

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

The Problem: The factory-installed thermostat housings on the 7.3 and 6.0 Powerstrokes are very prone to corrosion. Corrosion that eventually leads to coolant leaks. Leaks for either engine generally

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 blue spring upgrade exists because the 6.0L Powerstroke has a fuel pressure problem that usually starts small, stays hidden, and eventually gets expensive. From the factory, the regulator in the f

Often missunderstood and done incorrectly, 7.3L HPOP line replacement is a simple job just about anyone can pull off in an hour or two. So let's get rid of the fear of the unknown that stops most of u

Summer is upon us, bringing high ambient temperatures and the recreational towing season. Both can push your 7.3L Powerstroke’s 4R100 transmission to its thermal limits. Heat is the number one enemy o

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 working

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, but it is gen

The 6.0L Powerstroke is known for making good power, but the factory torque-to-yield head bolts are one of the places owners stop taking chances. When cylinder pressure goes up—whether from tuning, to

ARP head studs are one of the most common reliability upgrades for Ford Powerstroke diesel engines because they increase cylinder head clamping force. More clamping force helps keep the head gasket se

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 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

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff%20Diesel%206.0L%20Coolant%20Filter%20Instructions.pdf Parts Required: Riffraff Diesel 6.0L Coola

Injector cups (aka injector sleeves) are the thin barrier that keeps high-pressure fuel and engine coolant from turning into one nasty mix. When that barrier fails, the usual concernt is fuel in the c

Blown boots are some of the most common concerns in all of diesel. Just about everyone has delt with one, and when it happens, it’s always during a high stress situation. You’re towing heavy up a grad