Riffraff Diesel Technical Knowledge Center
6.0 Powerstroke Torque Specs: Full Bolt Torque Chart for 2003–2007 Ford Diesel Engines
Mar 27th 2026
Bolt torque for the 6.0 Powerstroke shouldn’t be guesswork. So we pulled the specs from Ford service manuals and other trusted sources, then organized them all in one place below. Consider this
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Motorcraft IPR Valve for 7.3 Power Stroke (1996–2003): Symptoms, Fixes, and Install Tips
Mar 25th 2026
The 7.3L Power Stroke’s HEUI system runs on high-pressure oil, and the Injection Pressure Regulator (IPR) controlls how much oil the HPOP actually sends to the injectors. When the IPR is happy,
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Why Your 4R100 O/D Light Is Flashing: Common Codes, Symptoms, Causes, and Fixes
Mar 25th 2026
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
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Measuring for the right intercooler boots: How To
Mar 20th 2026
Determining the intercooler flange size is required before ordering your Riffraff Diesel Intercooler Boots. The intercoolers have different configurations, so you must verify the size prior to orderin
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Fuel Rail Crossover (FRx) for the 6.0 Powerstroke: fixing the “deadhead” problem the clean way
Mar 19th 2026
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 at
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