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Lefty loosey, righty tighty.
Unless the fan clutch is bad just remove it with the water pump. Otherwise it is a 36mm fan clutch wrench that most auto parts stores have for rent.
To remove the fan clutch on a Chevy Tahoe, the upper fan shroud must first be removed. Once removed, a tool is needed to hold the clutch in place to allow for the fan to be removed. The nuts must be unscrewed on the fan in a counterclockwise rotation. Remove the nuts on all side and the fan clutch will remove.
To remove the fan clutch from a 2007 Chevy Colorado, first, disconnect the negative battery cable and remove the fan shroud for better access. Use a wrench to hold the water pump pulley in place, then turn the fan clutch counterclockwise to loosen it. If it's stubborn, you may need a fan clutch tool for added leverage. Once loose, carefully pull the fan clutch off the water pump shaft.
you have to remove the cooling fan to change the fan clutch. you need to loosen the fan shroud, be careful to remember the serpenting belp routing, maybe draw a diagram to remind you. 4 bolts holding the fan to the water pump, 4 bolts holding the clutch to the fan. this is how i did mine on a 5.0l Chevy truck
With a fan clutch removal tool from an auto parts store.
Remove the fan itself then remove the clutch from the fan
To remove the fan clutch on a 2007 Chevy Trailblazer, first, ensure the engine is cool and disconnect the battery. Use a wrench to hold the water pump pulley in place while you turn the fan clutch counterclockwise to loosen it. Once loose, carefully lift the fan and clutch assembly out of the engine bay. Be cautious of any coolant that may spill during the process.
Best if you own a compressor, air tools keeps the clutch from turning. If no compressor, mount it in a vise to keep it from turning and remove each bolt, can be tricky as they are mounted together but turn seperately when activated.
The clutch fan on a 2004 Chevy Silverado is removed by loosening the alternator bracket and pulling the drive belt. The fan's retaining bolts can then be removed and pulled from the engine.
Lefty loosey to remove the fan clutch but the fan assembly rotates CCW when the engine is running.
clutch fan is removed with 2 special tools. these are available at auto stores.they are not cheap. also remember the clutch fan screws onto water pump, and has left hand thread,so you will need to turn it clockwise to remove