I need to changed water pump, thermostat and flushed old coolant?

Tiny
BETTISBUS36
  • MEMBER
  • 2009 DODGE RAM
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 49,000 MILES
Discovered a leak from the original water pump. I need to changed water pump, thermostat and flushed old coolant. Developed a noise shortly thereafter. Thought it might be old coolant that had leaked onto a pulley and got sprayed around the engine compartment. I washed the pulleys and replaced the belt, idler pulley and tensioner pulley. Noise is still there. The noise is hard to describe but it only happens around 1900-2100 rpm. Will do it in park and driving. Its almost like a rattle in the front of the engine. I know if I have a bad water pump.
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Sunday, March 8th, 2015 AT 6:51 PM

25 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
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Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/water-pump-replacement

Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.
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Sunday, March 8th, 2015 AT 7:04 PM
Tiny
BETTISBUS36
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Thanks for the help. This site is great I cant believe it is free.
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Sunday, March 8th, 2015 AT 7:13 PM
Tiny
SHAGADELIC_PIMP101
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  • 2005 DODGE RAM
  • V8
  • 4WD
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I was wanting to know how to replace the water pump on my truck and how long it calls for. Im familiar with cars and trucks, I just need to know whether or not I should take it to somebody or not?
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Thursday, May 13th, 2021 AT 12:08 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
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What do you have for engine size
and you may need a special tools to remove fan clutch
in most it calls for about 3Hrs


https://www.2carpros.com/forum/automotive_pictures/99387_W01331632134SNK_2.jpg



https://www.2carpros.com/forum/automotive_pictures/99387_fan_clutch_5.jpg

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Thursday, May 13th, 2021 AT 12:08 PM (Merged)
Tiny
SLOWDESERTDOG
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  • 2002 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 142,000 MILES
1. Do I need to remove the fan shrowd to remove the water pump? If so How do I get it out without removing the radiator?

2. What is the best way to remove the nut that holds on the pulley from the water pump?
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Thursday, May 13th, 2021 AT 12:08 PM (Merged)
Tiny
NAVYRAY
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  • 2 POSTS
I just changed the water pump in my '01 Ram. I know the body styles changed, but I'm not sure about under the hood. I had to take out the shroud, but not the radiator. Obviously, drain the coolant, disconnect the upper and lower hoses, take off the coolant reservoir and the washer fluid tank. There are four bolts (2 per side) holding the shroud on. You can't get the shroud off with the fan still on though. I used a 6" belt wrench and a long crescent wrench to get the fan off. Once the two are disconnected, the shroud and fan come right out.

Getting the fan nut loose is a challenge. I did it myself though. Take the belt off the pulleys first. Then get on the passenger side of the car and loop the belt wrench around the fan pulley so that you put tension in on it in an upward direction. Then put the crescent wrench on the nut and pull down with it. Once the fan is out, DO NOT LAY IT ON ITS BACK. Make sure it stays upright so the fluid doesn't settle improperly.

The hardest part of the whole process was getting the old gasket off. I recommend using some high temp silicon to seal the new gasket when you put it on.
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Thursday, May 13th, 2021 AT 12:08 PM (Merged)
Tiny
BUBBA803
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  • 2002 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
I have an 02 dodge ram 1500 with a 5.9L with 126,000 miles. I need to replace the water pump. Are there any special tools I will need? Also, what else should I replace besides the belt while I am in there?
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Thursday, May 13th, 2021 AT 12:08 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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No special tools. As far as other things to do, I would recommmend replacing the thermostat and flushing the engine block and radiator while it is apart. Also, inspect all hoses from the radiator and heater core for wear.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
ENOTAH
  • MEMBER
  • 3 POSTS
  • 2001 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
I need to replace my water pump and in the repair manual it says to loosen the nut that holds the fan clutch with a 34mm fan wrench while using a screwdriver or a wrench to keep the pulley bolts from turning. I cant find the pulley bolts. Which bolts are they referring to? Can I take the fan shroud off before taking the fan assembly apart? That would make it a lot easier to access the pulley area.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
SLAMMER
  • MEMBER
  • 15 POSTS
Your probably using a haynes manual? They make a special spanner wrench to fit in the holes in the pulley that the fan nut is up against. Stick 2 bolts in the pulley holes and then use the screwdrive/ pry bar to stop the pulley from spinning. The spanner wrench looks like a Y, with 1 pin on each leg of the V to fit in the holes. U could make one out of flat bar and make the pins short bolts? Remember the nut turns counter clockwise when facing the front of the engine.I'll try to post a pic?


https://www.2carpros.com/forum/automotive_pictures/133174_spanner_wrench_1.jpg

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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
ENOTAH
  • MEMBER
  • 3 POSTS
Thank you. I ended up purchasing a pulley belt that wraps around the pulley and then you have to pull the belt in the opposite direction of the wrench and the nut comes loose. THanks for your reply. I am seriously considering getting rid of the vehicle and going with something other than a dodge.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
SUPERTILLEY
  • MEMBER
  • 1 POST
  • 2001 DODGE RAM
  • MANUAL
  • 100 MILES
My old water pump had a metal hose coming out of the heater hose area and my new one does not. How do I get that off. 01 dodge ram
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Believe it or not, the only thing holding that in place is a bolt that is mounted to the engine block. The end that is in the water pump only has an O-ring at the end of it. Carefully, turn and pull to get it out. If it gets damaged, you can get a new one at most parts stores for about 15 bucks. Make sure to place a thin coating of coolant on the new o-ring when replacing it.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
DFRYE
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  • 1998 DODGE RAM
  • V8
  • 2WD
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1998 dodge ram 1500; 318 motor. How do you get the water pump bypass hose off?
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MECHANIC
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It is not easy to get too. The upper hose fas to come off at least. I am attaching a pic of a 318 with hose removed and the location from which it was removed from is circled.
I happen to have the MOPAR part # as you should replace it because it is difficult to get to.

Bypass hose [Mopar P/N H0063735]

I hope this info helps. Let me know if you need anything else.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
DPALMIERO
  • MEMBER
  • 1 POST
  • 1996 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
I replaced the water pump on my 1996 Dodge Ram 5.2L 1500 4x4 pickup (W/AC) which is no problem except for the tube for the heater hose. I can't get the short pipe (baught a new one) to insert properly (without leaking) into the water pump discharge hole. Is there a trick to getting the pipe installed short of tapping the hole and screwing in a nipple for the heater hose?
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
JFRAZIER23
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  • 4 POSTS
The matal hose that attaches to the top right side of the water pump must hav a new O ring placed on it. This is what seals the connection. It also is good to apply a small amount of gasket seal to the O ring. Ths is a low pressure connection and does not require a niple.
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
MARKLEMONS
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  • 1 POST
  • 1996 DODGE RAM
How do I remove and replace the water pump?
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,005 POSTS
Here are the general steps:

1. Remove the radiator.

When removing or installing the constant tension hose clamps from vehicles so equipped, use only the correct clamp tool, such as the Snap-On No. HPC-20, or equivalent.

2. Loosen all accessories that are belt driven and remove the belt(s).

3. On engines without air conditioning, remove the alternator bracket attaching bolts and tie the alternator and bracket out of the way.

4. On engines with air conditioning, remove the idler pulley assembly, alternator, and adjusting bracket.

5. Remove the fan blade, spacer (or fluid unit), pulley, and bolts as an assembly.

To prevent silicone fluid from draining into the drive bearing and ruining the lubricant, do not place the thermostatic fan drive unit with the shaft pointing downward.

6. Disconnect all hoses from the water pump.

7. Remove the air conditioning compressor front mounting bolts.

8. Remove the water pump-to-compressor front bracket bolts and the bracket. Remove the water pump.

Do not disconnect any refrigerant lines from the compressor.

To install:

This component is subjected to constant high pressure from hot fluid and must be sealed correctly or it will leak.

9. Clean the mating surfaces prior to sealing the water pump.

10. Install the water pump on the engine. Use a new gasket coated with sealer.

11. Install the water-pump-to-compressor front bracket mounting bolts. Tighten the bolts to 30 ft. Lbs. (41 Nm).

12. Install the air conditioning compressor front mounting bolts. Tighten the bolts to 30 ft. Lbs. (41 Nm).

13. Reconnect all hoses to the water pump.

14. Install the fan blade, spacer (or fluid unit), pulley, and bolts as an assembly.

15. On engines with air conditioning, install the idler pulley assembly, alternator, and adjusting bracket.

16. On engines without air conditioning, install the alternator and bracket.

17. Install the drive belt(s).

18. Install the radiator. Fill the cooling system and adjust the tension of the drive belt(s).

Let me know if this helps.

Joe
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)
Tiny
KBLANC64
  • MEMBER
  • 1 POST
  • 1995 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 138,000 MILES
Water pump replacement?
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Thursday, May 13th, 2021 AT 12:09 PM (Merged)

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