Question about 1999 Jeep Grand Cherokee

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Removing the fan clutch

I have a 2005 GMC Envoy and cannot remove the fan clutch in order to replace the water pump.

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Get a big adjustable wrench and insert it in the bolt and hammer it fast in one blow that should solve your problem

Posted on Jun 04, 2009

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Posted on Jan 02, 2017

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2005 GMC envoy Oil pressure drops to zero when stopped if in a drive thru the car over heats. AC off its ok. Oil level/pressure fine replaced clutch fan wire harness(pigtail)replaced water pump.


The oil pressure drop indicates more problems.

Oil pressure drops to zero at idle on 2002 GMC Envoy after ...

www.fixya.com/cars/t7880379-oil_pressure_drops_zero_idle_2002_gmc Jan 18, 2011 - You could have three possable problems that I can think of. 1) Your oilviscosity is too low and you need to change it to a higher level. A 5w/30 .

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I replaced the clutch fan on my gmc 2003 envoy. But I still have the same problem, the noise is so loud, is there a computer that controls the fan?


you mention you have a clutch fan then you don't have any electrical control on the fan.
remove the belt to see if it 's the problem could be water pump bearing or else
hope it helps

Sep 29, 2014 | 2003 GMC Envoy

1 Answer

Fan clutch loud


usually that sound is associated with a defective clutch fan... did you get the right one for your application... thermal or non thermal

did you purchase an after market cheap one... I'd replace it with another one and try again

Dec 28, 2013 | 2005 GMC Envoy

1 Answer

Trying to remove the fan clutch in order to change the water pump


Thread on type. Loosen fan clutch counter clockwise for removal. Requires 36mm wrench (or adjustable crescent wrench).

Dec 31, 2012 | 1997 GMC Jimmy

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Fan pulley wobble 2005 envoy


Fan wooble on my 2005 Envoy GMC is it that the water pump failed are the fan

Jul 05, 2012 | 2005 GMC Envoy SLE

1 Answer

Envoy cant get to water pump to change it. Removed grill exc but can't get radiator out and fan out


The fan and fan shroud need to be removed as one assembly. You will need a 34mm wrench to get the fan clutch removed from the water pump. Once the fan clutch is unthreaded and the bolts that hold the fan shroud to the radiator are removed you will be able to remove the fan clutch/ shroud assembly from the vehicle. You do not need to remove the radiator nor can you remove the radiator without first removing the clutch/shroud. You will notice that when you are removing it it will be a little tight getting around the inlet for the upper hose on the radiator . Once the shroud is removed trim a notch where the shroud was hitting on the inlet and I will make install a lot easier. If you have any questions let me know. Thank you for using fixya.com!

Oct 22, 2011 | 2004 GMC Envoy

1 Answer

How do i get to my water pump


The water pump is directly behind the fan pulley. You will need to remove the fan and fan clutch assembly (possibly the fan shroud) and pulley. Once all these are removed, the water pump is exposed on the front of the engine (this assumes you have the 6 cylinder engine)

Apr 20, 2011 | 2005 GMC Envoy

1 Answer

How to remove a water pump


Locate water pump.. It's where the bottom radiator hose goes from the radiator. Remove any brackets or parts that are in your way. Remove water pump! Reverse procedure for installation. You have to remove the fan clutch from the water pump shaft and lift the shroud, fan and clutch all out together. remove two bolts in the center radiator support which let the radiator move forward an inch or so, loosen the fan from the clutch for a little more wiggle room to get it out. The shroud will have rubber splash shields hooked to the lower sides too, so be sure to unhook them or you will tear out the holes in the rubber shields.The fan clutch has to come off anyway because it's attached to the water pump. You don't need to remove the fan shroud. Just take out two bolts on the fan clutch and loosen the other two so you can push the clutch back a little (DON'T let the fan clutch fall). Then remove the water pump. It's a little tight, but much easier than removing the fan shroud.the only specialty tool that you will need is the water pumpt "grab" tool and the fan clutch wrench. These two items come together in one kit that you can rent from the Auto Parts store.
The "grab" tool holds the water pumpt pully firmly while you rotate the fan clutch retainer using the fan clutch wrench.

DO NOT attempt to use a break over bar or some other home-grown tool to hold the water pump pully while attempting to break the fan clutch free - you will mess up the heads of the four retainer bolts holding the pully to the water pump face.
this will help.thanks.

Feb 21, 2010 | 2006 GMC Envoy

1 Answer

How do I change a water pump on my 2005 GMC Envoy 4.2L 4wd


Remove belt,center pulley, fan, and three bolts holding pump on. When tightening bolts, find out torque spec first, those little bolts will not take much.

Jan 30, 2010 | 2005 GMC Envoy

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