[DurangoUGA]

How hard is it to get to the water pump on the 5.9?


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[that_guy]

Not very. The hardest part is holding the pump still while you break the nut loose on the fan (some say it's reverse threaded, but mine was regular I think). Other than that it's pretty straight forward. I'd recommend you get a replacement bypass hose (it's the 2 or 3" long hose that goes from the top of the pump to the manifold) because you have to flex it a good bit to put it back on, and old rubber and flexing don't mix. If you haven't done it before I'd allow at least 2-3 hours in case you need to figure stuff out. Make sure you get a new gasket too.

 

[Durangutan]

How good at wrenchin' are you? I replaced it on my 98 5.2 (which I think is pretty much the same procedure). Took a couple hours, mostly because I left the fan attached until I already had the pump off and struggled to remove it, which isn't a good idea. The A/C compressor has to be moved out of the way, but after that I don't recall any nasty gotcha's off the top of my head. I'm mid-level shadetree.

 

[Durangutan]

Not very. The hardest part is holding the pump still while you break the nut loose on the fan (some say it's reverse threaded, but mine was regular I think). Other than that it's pretty straight forward. I'd recommend you get a replacement bypass hose (it's the 2 or 3" long hose that goes from the top of the pump to the manifold) because you have to flex it a good bit to put it back on, and old rubber and flexing don't mix. If you haven't done it before I'd allow at least 2-3 hours in case you need to figure stuff out. Make sure you get a new gasket too.

Posted at the same time... Yes, replace that hose while you're in there. It's easy when you have it apart like that, so why not. Good insurance.

 

[dizzyD]

A couple hours tops. just pay attention to your radiator clearances, don't bump it. thick card board or thin plywood if you have fumble fingers...

 

[prisoner6]

Not difficult but if the fan/clutch assembly hasn't been off it can complicate things a lot. I have done it twice...don't ask why LOL!

First off check You Tube there are a TON of videos on doing it.

Secondly you really want to find this tool or something similar.

The one I'm showing (a KD tool) is from EBAY and for a Jeep. He is asking $52 BUT I bought mine at NAPA for half that. CHECK AROUND!

Third KEEP TRACK OF THE BOLTS and WHERE THEY GO! There are 2 lengths. Last Fall Mrs p6 was...helping me. Usually I put them in a cardboard template (use the new gasket to mark the holes) but she put them in marked plastic bags. After trying to torque a longer bolt into a short hole and hearing a "TING" I realized the bolts were mixed up. Luckily no damage was done. That added maybe half an hour, lots of worry and strained spousal relations.

Fourth KEEP THE CLUTCH ASSEMBLY ORIENTED SO FLUID DOESN'T SEEP OUT!

Might also want to check or replace the belt and tensioner assembly...maybe the idler pulley too.!

Finally read what others have posted. REALLY good idea to change the bypass hose IF you can easily get to it. IIRC It runs UNDER The A/C bracket. I managed to replace the pump last fall without taking the bracket off so this spring I have to do double work and pull the bracket and replace the hose and thermostat. Double work....story of my life.

 

[MWeed]

You don't need a special tool for the fan clutch. Put a pry bar or other instrument so that it is between 2 bolts slipped into 2 of the 4 holes in the pulley and then use a wrench big enough for the nut that screws onto the pulley ( I have even used a pipe wrench on one occasion) and everything comes off very easily.

 

[FSTDANGO3]

I used a large adjustable and smacked it with a hammer came right off
STEVE

 

[that_guy]

If you're unlucky like me there are no holes or anything on the pulley to hold it still with, so I had to use an old belt as a strap wrench to hold it still while someone else broke the nut free. It was a pain in the ass. And like mentioned above, you do need to keep the fan clutch upright (like it sits mounted on the engine) so that the fluid doesn't seep out.

 

[DurangoUGA]

Thanks guys, I found the YouTube videos just after posting this. Looks simple enough. I'm not shabby at turning wrenches, I just don't have a garage or a whole lot if time. Son of I start something I need it to be something I can get done that day, lol. Can't leave parts laying around where I live.


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[prisoner6]

@DurangoUGA

Let us know how you made out.

 

[DurangoUGA]

Well, I never changed the water pump because it just up and stopped leaking. Not sure what's up with that. I'm really starting to believe this thing is possessed.