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Fan Clutch Repair

C

Coug

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Stuck engaged is a common issue.

If you disconnect the hydraulic line going to the fan clutch and blow in compressed air, and use a long piece of wood and a hammer to tap on the clutch it can help it free up. You need over 90psi in order to disengage the clutch. Once it's unstuck it should work normally if everything else is good.

You should also verify that it isn't an electrical issue. Putting a pressure gauge on the line going to the clutch should show in excess of 90psi with engine running and not at high temps (which shouldn't happen anyway with a stuck clutch)
 
DREDnot

DREDnot

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hawk-aggie said:
It is stuck engaged.
Click to expand...
Not sure if you know this or not but it is design is to always be engaged as a failsafe. The whole electrical and hydraulic is only there to disengage the clutch under certain conditions. Usually the thermal switch or the time delay module fails or the square four prong connector by the washer fluid tank is unplugged which causes the clutch to remain engaged.

If the whole disengage system is working properly and providing pressure to the clutch, COUG's air pressure and tap method will free the stuck clutch ring.

Ive only had to replace a clutch that had a worn friction ring that wouldnt engage under the failsafe spring and just free wheeled
 
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