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

Assuming no outside factors like accidents or racing are involved, the life and death of a truck is based on maintenance. Good diesel truck maintenance is what keeps it on the road for several hundred

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

Full PDF Instructions can be found here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_Diesel_LPOP_Instructions.pdf   Required Parts: M208 Melling LPOP: https://www.riffraffdiesel.com/mell

The 6.0L Powerstroke has a lot of famous problems, but the EOT/ECT delta is one of the easiest ways to catch trouble before it gets expensive. Bad numbers here can lead to failures across the board. T

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

The 6.0L Powerstroke gets blamed for everything. Some of it is fair. Some of it is just people ignoring $40 problems until they turn into $4,000 problems. Not every fix needs head studs, an EGR cooler

The 7.3L Powerstroke will usually drag the trailer wherever you point it. The 4R100 however, needs a little more respect. It is not a bad transmission by any means, but heat, old fluid, weak cooler ca

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

The IPR is one of the main players in the 6.0L Powerstroke high-pressure oil system, and even though they're very commonly replaced, they're actually very robust parts. Proper diag is often skipped wh

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

A good scan tool can save you a pile of money if you know what numbers actually matter. Codes are useful, but live data is where the 7.3 starts telling on itself. Hard start, no-start, low power, smok

The 7.3L Powerstroke is simple, reliable, and painfully honest. If fuel supply is weak, dirty, restricted, aerated, or leaking, the truck will let you know. Fuel system upgrades are not just for big i

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

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 7.3L Powerstroke has earned its reputation the honest way: by generally refusing to die for decades. But even the best diesel ever stuffed into a Ford pickup is still attached to 20-plus-year-old