Riffraff Diesel Technical Knowledge Center
EBC Brake Upgrades for Ford Powerstroke Trucks
Jul 31st 2026
A Powerstroke is heavy before the trailer gets hooked up. Add bigger tires, a trailer, steep grades, heat, and daily use, and the brake system starts working a lot harder than most people give it cred
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How to Test a 6.0L Powerstroke Electronic Fan Clutch
Jul 31st 2026
A weak fan clutch can make a healthy 6.0L Powerstroke look like it has a major cooling-system problem. The truck may stay cool unloaded, then heat up while towing, climbing a grade, idling, or running
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7.3 Injector O-Rings vs. Injector Cups: How to Tell Which One Failed
Jul 24th 2026
A 7.3L Powerstroke can make a simple leak look like a much bigger problem. Fuel in the coolant? Oil in the fuel bowl? White smoke? Hard start? Miss? Coolant puking? Random rough running after injector
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Complete CAC Intercooler Boot Kit for the 2008–2010 6.4L Powerstroke
Jul 24th 2026
The 2008–2010 6.4L Powerstroke CAC boots deal with heat, oil vapor, boost pressure, towing load, and age. Over time, the factory boots can swell, crack, slip, or blow off, causing boost leaks, s
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ARP Head Stud Kit for 2003–2007 6.0L Powerstroke
Jul 20th 2026
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 tuni
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