Fan clutch?? Never heard of that being a thing.

Water pump is probably a 1.5hr DIY job.

And no, the cross over is not a "while you are in there", because for the water pump you dont need to remove the supercharger. it's right in front and can be easily accessed. some people will take the throttle body off at the front of the supercharger for a little easier access.

However, going the other way, if you already had your cross over pipes done - they should have replaced the water pump at the same time. That's definitely something that most shops will do/recommend at because it's just an extra couple bolts to swap the pump out once you have the supercharge and throttle body off. I know my shop replaced my water pump at the same time and didnt even ask me.

I just found another coolant leak and thought it was the water pump, but it turned out to be the upper coolant hose. There is a plastic Y fitting that developed a hairline crack and is slowly seeping. Thats an easy fix and doing it this way weekend.

Fan clutch… the mechanism in the center of the radiator fan. Fan is not spinning, therefore faulty clutch. The replacement is essentially the entire fan/clutch assembly.

water pump was replaced several years/30k miles ago with crossovers. Apparently needs replacement again.

hmm. yea I would look up the fan clutch replacement. I cant imagine it would take 5.5hrs, but never heard of it being a problem so never researched it.

You are going to have the belts and shrouds off for the water pump replacement, which takes 15 mins, so everything is already out of the way to remove the fan assembly. I know for the radiator you need to remove the front end to get it out, so thats a more involved job. But my assumption is the fan just bolts to the back and slides up and out easily.

You can YouTube a lot of videos on the replacing the water pump - but dont look for the LR4. There was only 2 years with those SCV6 engines in the LR4 so it's hard to find content on it. Instead look for the videos on replacing the water pump on the Jag SCV6. Tons of videos.

Fan/clutch replacement should be an hour or so based on what I’ve found here. Trying to figure why they quote 7.5 hours for that and water pump.

yea I just replaced my upper coolant hose yesterday and was looking at the clutch assembly. those 2 jobs together are probably 2hrs max for any trained technician.

More information… apparently the shop gave me a bad quote because the “higher ups” don’t want them to take on the water pump replacement. They did not find anything to say the water pump is bad, just assumed they should replace it when replacing fan. No leak found.

So, they are willing to replace the fan assembly (which to my knowledge includes the motor and fan clutch). The main symptom is the fan is not spinning properly (comes to a complete stop after first start up). They quoted me an hour labor.

So theoretically, I replace the whole radiator fan assembly and if the clutch is the issue, I should now be good to go???

Please correct me if I’m wrong.

Not sure my recent mechanic is up to snuff… he said if the fan clutch wasn’t working the water pump wouldn’t work… not sure that is right, I thought the serpentine belt drove the water pump. Probably better that he doesn’t want to do the water pump. I will have him replace the fan/clutch assembly though and see if the truck stays cool.

Obviously it would be better to have the stealership do the job, but can’t justify the $350 towing fee to get it there and $3000+ for the repair. If the truck is still overheating it is going to limp to Subaru on a cool night to trade in for a used Outback for my teenage daughter. Hurts me to say that.

@honolulugator get a new mechanic that guy is confused or still living in the 70's. If the belt is moving the water pump may have failed but it as nothing to do with the fan clutch.

On a normal Fan Clutch :

Normal fan clutch operation is dependent on the fluids in clutch, and the fan normally spins when then water pump turns. As things get hotter it spin's faster as the clutch locks up.

If the fan does not spin at all then the fan clutch bearing is shot or there is another issue.

The LR4 adds a electrical thermostat to fan so you need to check the fuses and relays related to the fan. if your message center works then the fuse is probably ok, the relay is number 12 in the engine bay, the electric thermostat can also fail.

spoke with the senior guy this time, much more informed. Replacing the fan/clutch assembly. Fingers crossed.

thermostat was replaced less than 100 miles ago.

thanks to everyone here with advice.

More updates, fan clutch assembly replaced, mechanic test drove and said fan worked fine. Has been parked for two weeks, just started it and checked fan. With cold engine it barely spins and I can easily stop it with one finger. Before I drive it anywhere in Florida 90 degree heat… is this normal?