Riffraff Diesel Technical Knowledge Center

How to Test a 6.0L Powerstroke Electronic Fan Clutch

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 … read more