Riffraff Diesel Technical Knowledge Center
Common 4x4 Problems on 1994–2010 Ford F-250/350 Trucks: Symptoms, Causes, and Fixes
Apr 21st 2026
If you are chasing 1994–2010 Ford F-250 4x4 problems, the good news is most of them follow a pattern. On the 1994–1997 OBS trucks, the biggest issue is usually the automatic locking hubs.
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6.0 Powerstroke Degas Lower Overflow Hose (2005–2007) - Mishimoto Silicone Upgrade
Apr 21st 2026
If you’re replacing a tired and/or leaking factory lower degas coolant hose on a 2003–2007 6.0L Powerstroke, these are the direct-fit upgrades:
Mishimoto Degas Lower Overflow Hose (MMHOSE-
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KC300X G3 Stage 1 Turbo for 1999-2003 7.3 Powerstroke
Apr 17th 2026
If you’ve got a 1999-2003 7.3 Powerstroke and you want a true drop-in turbo upgrade that spools quick and supports real injector growth, the KC Turbo KC300X Gen 3 Stage 1 turbocharger is built f
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7.3 Powerstroke HPOP Line Installation: Step By Step How To
Apr 17th 2026
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
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Ford TSB 98-23-14: The OBS 7.3 Powerstroke Belt Tensioner Fix That Still Matters
Apr 15th 2026
If your OBS 7.3 has a belt chirp that keeps coming back, a squeal that shows up at idle, or a habit of wearing belts faster than it should, Ford already had a fix for it. TSB 98-23-14 applies to the 1
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