fan question
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Joined: Feb 2009
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fan question
i have a 1999 5.4 with a plastic engine fan. {it is the stock white one}when i drive the truck it sounds like a dam school bus reving rpms. like the fan is draging or somthing then as i drive for a while it goes away and it is quiet and smooth for about 2 min or till i come to a stop then the school bus noise come back. im sick of it. the fan blades turn really hard by hand.i was just wondering if cluches go bad in the fan were it free spins. it sound like a back pac blower used for landscaping minus the engine sound hope that helps.
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Joined: Aug 2007
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From: Fort Wayne, IN
i have a 1999 5.4 with a plastic engine fan. {it is the stock white one}when i drive the truck it sounds like a dam school bus reving rpms. like the fan is draging or somthing then as i drive for a while it goes away and it is quiet and smooth for about 2 min or till i come to a stop then the school bus noise come back. im sick of it. the fan blades turn really hard by hand.i was just wondering if cluches go bad in the fan were it free spins. it sound like a back pac blower used for landscaping minus the engine sound hope that helps.
If temps are fine then yeah your clutch is going bad. The non free spinning is a good proof of that. Rock Auto has the OEM one. This is some good advice to follow. fan clutch removal 2001 supercrew 5.4l - Ford F150 Forum
Elder User
Joined: May 2009
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From: Peoria, Arizona
Had a fan clutch go bad on me. The engine was overheating because of the bad fan clutch so even if your temps are up it probably still means that ur clutch is bad. It should turn pretty freely so if your having to push it, then its bad.
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Joined: Apr 2008
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That's just the opposite of how it should be. There should be drag, if it spins freely then the clutch is bad.
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