Question about 1999 Dodge Durango

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Water pump how do you go about changing a water ,,,I am having trouble with the clutch fan. thanks for any help

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  • tacuba1965 Sep 11, 2008

    how do you install the fan/clutch. I was able to tighten the 2 inch bolt but then the pully started to spin. Do I need a special tool or by starting the engine, will it tighten itself?

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Disconnect battery, the first time you lay a wrench across the posts you'll understand why...Drain radiator. If petcock at bottom of radiator doesn't work, pull the bottom radiator hose. You will probably want to remove the radiator rock-guard under bumper first. LOTS more room to work. Just pop out the plastic retaining pins and slide it under the vehicle out of your way. *TIP* DO NOT lay under the hose b/c it's easier to reach, keep your mouth closed, and have the catch pan for the coolant already under the vehicle. While you are down there, look for an inline connector on the trans. cooler line(near center bottom of radiator). Use two wrenches to disconnect these and have something clean to plug the line with, it WILL leak. Disconnect top rad. hose and overflow hose(located on base of radiator fill). Disconnect the TOP trans. fluid cooler line. Remove four fan shroud retaining bolts. Don't lose. Remove radiator mounting bolts(2). Lean the fan shroud against the pulleys/belt and remove the radiator. Three hands would be nice right now as you will need to wriggle the trans cooler line around the shroud mounts and lower trans cooler line to get it out. Be patient, it WILL come out. Remove the fan shroud from vehicle. Loosen the clutch fan bolt w/ a clutch fan wrench( lg. Channel Lock) or a lg. crescent wrench. Serpentine belt might hold it tight enough, might not. If not, remove belt and use a strap wrench to hold onto the water pump pulley while loosening clutch fan bolt. Probably has reverse threads. Righty loosey instead of lefty loosey. Now remove the heater core coolant return line from right side of water pump. Look at top of water pump, there is a 1-1/2" hose you will need to loosen so the WP will come out. Start at 12 o'clock position and remove the WP bolts, keeping them in order as you take them out as they are different lengths. ***** You should be able to gently pry the WP away from the engine block now. If not, look for more bolts in the WP. There is one near the top that is easy to miss, hard to see. Now you can clean all the old gasket from the engine block in preparation to put the new WP on.
You will prob be better off getting a new WP as most have a life-time warranty and rebuilts do not. (saved me $57.09!!)Most new WPs will have a thread protector on the pulley that will need to come off. Next you should put a thin layer of high temp RTV(Permagasket, etc.) on the WP and the back of the gasket. Using 1 or 2 of the longer bolts as guides you can carefully re-install the WP to the engine. Torque the WP bolts evenly a little at a time. Go back up to " ***** " and you should be able to reverse order the instructions from there. Remember to use the O ring for the heater core coolant return line. Mine still leaks there but hopefully I'll get that fixed tomorrow, even if I have to get a replacement tube. Good luck.

Posted on Jul 29, 2008

5 Suggested Answers

Big Poppa Ma
  • 302 Answers

SOURCE: pulling fan from water pump

should only be four bolts that holds your electric fan in place. you may have to remove any border on top of the fan and you lift it straight up out of the compartment

Posted on Dec 06, 2008

drsinister69
  • 2317 Answers

SOURCE: 2001 blazer hi clutch does the fan clutch come off the big nut

The big nut on the clutch unscrews from the pump. You'll need to get a chain strap wrench to hold the pulley or someway to hold the pulley, and a large wrench to loosen the nut.

Posted on May 29, 2010

  • 151 Answers

SOURCE: 1989 Chevy Suburban keeps overheating...have

try to see if ur heater core is pluged up sumtimes that can cause ur car to over heat. hope this helps

Posted on Jul 02, 2010

Testimonial: "Never thought of core being plugged...Thank you"

  • 432 Answers

SOURCE: how to remove the clutch fan on a 2004 dodge ram

autozone usually has a fan clutch loaner tool set, however in a pinch a strap wrench can hold the pulley and then you have room to fit a decent size crescent wrench. In a hurry you can use an air hammer on an edge (of the nut) going counterclockwise, they also make a neat tool that does basically the same thing, might take a few tries but you will get it.

Posted on Jul 27, 2010

Ironfist109
  • 3018 Answers

SOURCE: trouble removing fan clutch on 2004 chevy express

  • Yea that fan seems like a pain but all you have to do is stabilize it. A strap wrench is ideal but a belt will work too. Use this to stabilize your fan.
  • Now there is a nut on the back. Trick is this is a left handed thread. Right turns to loosen.


Regards, Tony

Posted on May 05, 2011

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0900c1528004319d.jpgReverse rotation water pump—2.5L and 4.0L engines
  1. Before servicing the vehicle, refer to the precautions in the beginning of this manual.
  2. Drain the cooling system.
  3. Remove or disconnect the following: NOTESome 4.0L engines are equipped with a fan clutch that threads Directly on to the water pump shaft. This fan clutch is equipped with right-hand threads. NOTEDo not store the fan clutch assembly horizontally, silicone may leak into the bearing grease and cause contamination. NOTEOne of the water pump bolts is longer than the others. Note the location for reassembly.
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    • Electric cooling fan connector
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    • Engine cooling fan and pulley
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    • Power steering pump
    • Lower radiator hose from the water pump
    • Heater hose
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To install:
  1. Clean the mating surfaces of all gasket material.
  2. Install or connect the following:
    • Water pump using a new gasket. Torque the bolts to 17 ft. lbs. (23 Nm).
    • Heater hose
    • Lower radiator hose
    • Water pump pulley. Torque the bolts to 20 ft. lbs. (27 Nm).
    • Power steering pump
    • Engine cooling fan and shroud. Torque the bolts to 31 inch lbs. (3 Nm).
    • Accessory drive belt
    • Electric cooling fan connector
    • Negative battery cable
  3. Fill and bleed the cooling system.
  4. Start the engine, check for leaks and repair if necessary.
3.7L Engine
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  2. Drain the cooling system.
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    • Fan shroud and fan assembly. If you’re reusing the fan clutch, keep it upright to avoid silicone fluid loss!
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  4. Installation is the reverse of removal. Tighten the bolts, in sequence, to 40 ft. lbs. (54 Nm). 0900c1528004319e.jpgWater pump tightening sequence—3.7L

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