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The 7.3L Timing Cover: The Good, The Bad, The Ugly, and The Billet Replacement

Arguably one of the most complex parts on a 7.3. Just about everything runs through the front timing cover or heavily relies on it doing its job correctly. The OE front cover has done its job amazingl

Cooler EGTs, More Power: A Guide to Intercooling the 1994-1997 Powerstroke

In the early days of light-duty diesel pickups, intercooling wasn’t a thing yet. GM’s 6.5L, the 7.3L found in OBS trucks, and even early 5.9L Cummins were all turbocharged, but none came with an inter

Ditch the flimsy stamped steel plenums and go with the billet upgrade! 7.3L Powerstroke Billet Intake Manifold Plenums

The factory-installed intake plenums on the 7.3L Powerstroke, quite literally, fail under pressure. Whether you've got a stock truck or one that's been hopped up, the thin stamped steel factory-instal

Step By Step How To - Billet Turbocharger Compressor Wheel Installation - 7.3 Powerstroke

Parts Required: Riffraff Diesel Billet Compressor Wheel - Ported Housing: Part# RDP-703697-0001 Garrett Compressor Housing O-ring: Part# GZ-14-010 Turbo Pedestal O-ring Kit: Part# GZ-9-003 Recommen

7.3L Powerstroke Glow Plugs: Full step-by-step how-to replacement

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

7.3L Powerstroke IDM Failure: Symptoms, Codes, and Diagnosis

A 7.3L Powerstroke can have great fuel pressure, good ICP, a perfectly good cam sensor, and pretty much everything else in good working order, and still not start. When this happens, it’s time to star

Step By Step Installation: Ported Housing Compressor Wheel

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

Top 10 6.0 Powerstroke EOT/ECT Delta Questions Answered

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

7.3 Powerstroke PCM Code Locations (1994–2003) + How to Decode What You’re Looking At

Ford didn’t make it easy: on a 7.3 truck you’ll see multiple “PCM codes” that mean different things (hardware vs. software vs. emissions calibration). The trick is knowing where each code lives and wh

Beat the Heat: A Guide to Upgrading Your 7.3L Powerstroke's Transmission Cooler

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

Up Pipes - How to choose the right set.

With so many options for up pipe replacements out there, it’s overdue to discuss what's what. We’ve seen them all; some are quality, some are not. We’ve seen all the issues, and we’ve designed our 7.3

Stripped HPOP bolts? Read this before you order a new front cover...

Removing and reinstalling the HPOP on the 7.3L Powerstroke can cause headaches for many. The mounting bolts are threaded into the aluminum front cover, and well, the threads aren’t exactly the stronge

7.3 Powerstroke Overboost Code Regulator: Full Step By Step How To

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/OCR_Installation_Instructions.pdf Required Parts: OCR - Overboost Code Regulator™ 99-03 OCR - Overboost

Full Step By Step How To: Riffraff Diesel 7.3 Plenum Reinforcing Inserts

Parts Required Riffraff Diesel Plenum Reinforcing Inserts: 1999.5-2003: https://www.riffraffdiesel.com/rdp-plenum-reinforcing-inserts-99-5-03/ 1994-1999: https://www.riffraffdiesel.com/rdp-plenum-rei

Why Your 4R100 O/D Light Is Flashing: Common Codes, Symptoms, Causes, and Fixes

If the O/D OFF light on your shifter is flashing, your truck is not just asking for attention. It is telling you the PCM saw a transmission-related fault. A solid light usually means overdrive was man

The Right Hubs: 1999–2004 F-250/F-350 4WD Wheel Bearing & Hub Assembly (Coarse Thread)

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 for coarse thr

Riffraff Diesel HPOP Bolt Access Cover for 1994-2003 7.3 Powerstroke

The 7.3 Powerstroke HPOP drive gear bolt access cover is not the most fun to deal with when the HPOP has to come out. The factory cover is a thin sheet metal plate sealed with RTV. Every time it is re

6.0L Powerstroke FICM Testing: Common symptoms and diagnostic procedures

The 6.0L Powerstroke’s Fuel Injection Control Module (FICM) is the brain of the injection system. It receives signals from the PCM to control the injectors themselves. The FICM lives in a very harsh e

Full Step By Step How To: 7.3L Powerstroke Plenum Reinforcing Inserts

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_PDF_Plenum_Inserts_Instructions.pdf Product Links: 1994- Early 1999: https://www.riffraffdiesel.

The 7.3 Under Valve Cover Harness: Only The Best, From Motorcraft

The 7.3L Powerstroke utilizes injector harnesses which live under the valve cover (UVCH). These harnesses live their whole lives in a very harsh environment. They exist in a constant hot oil bath. The