Clutch fan

2007 CHEVROLET FLEETMASTER
34,000 MILES • 7.4L • V8 • 2WD • AUTOMATIC
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CHUCKER HUNTER
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  • 1 POST
I can’t hear it engage and just had it replaced a few days ago. I know it should engage when it gets over 210 degrees or so. is there a sensor that might need to be replaced? The vehicle in question is a motor home.
Apr 2, 2021 at 1:49 PM
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I-SMOGEM
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  • 118 POSTS
Hi Chucker,

I need more information from you. Do you know if the fan clutch is a self contained fan clutch that is under hood temperature-controlled for engagement -- or is it the ECM/PCM signal that controls the level of engagement of the EV (Electro-Viscous) clutch (there will be wires coming from the clutch to a wiring harness). Both systems come up on a parts search.

VIN number might help in knowing your engine systems.

Glenn

Apr 2, 2021 at 5:36 PM