'99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Took a trip to southern Cali (from Seattle) last week loaded with camper and EB on trailer. When going up passes and had to downshift out of OD (above 2700 RPMs)I heard a loud squeak/screach, like a fan belt? But after a few time it would only squeak when the cooling fan was on. As soon as the fan shut off the squeak would stop.
The other funny thing was when the fan was on it would occilate between fast and slow. I could hear it slow down and speed up about 4 or 5 times.
Would this be a fan clutch going bad? Ford dealership could replicate the conditions so they said nothing was wrong [img]/ubbthreads/images/graemlins/rolleyes.gif[/img]
Try this link
I had the same problem and bought the kit fix, (knock on wood), no repeats.
I had the same problem at the stealer, X's 2...COuld not duplicate the problem, therefore, no problem....
Good Luck [img]/ubbthreads/images/graemlins/wink.gif[/img]
2002 F-250, LB, CC, AFE stage 2, Magnaflow 4" SS turbo back, Donahoe 4 1/2" lift, 35" BFG's, and DP Tuner 4 pos chip, ISSPRO gauges on the A pillar, AIH delete, Performance turbo wheel, ATS housing, Bob Riley's Intercooler boots and CCV mod
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CSU, Long Beach