How do you remove the clutch fan on a 2006 Rubicon?

Answer 1

Steady the pulley by using wrenches on the nuts of the pulley then use a big wrench to loosen the hexagonal shaft from the pulley When apart you will see the hexagonal shaft threads onto about a 3/4" diameter shaft. I usually unbolt the fan shroud without removing it just so it can be moved around for better clearance. Once the fan and clutch assembly has been removed they can then be separated to replace the clutch. Be careful not to damage any of the fins on the radiator while doing so.

NOTE: While fan clutches do fail on Jeeps, some of the time they don't need to be replaced. It is especially common (since people with Jeeps look for puddles) for muddy water to be splashed up on the radiator and the evaporate leaving mud between the fins.

1st: Spend a few minutes with the garden hose spraying from both sides of the radiator before considering part replacement.

2nd: With the engine cold and off spin the fan by hand to judge the resistance. Then when the engine is hot turn it off then immediately check the fan by spinning it by hand. If the fan is much harder to spin by hand when the engine is hot then the fan clutch is working properly, if it the same or barely more resistance then it is time for a new fan clutch.