Question about 2002 Jeep Grand Cherokee

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Change water pump

How do I change water pump on 2002 jeep grand cherokee laredo

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  • tcampbel_sdp Nov 15, 2008

    Engine is 6 cylinder 2002 Jeep Grand Cherokee Laredo 4wd

  • tcampbel_sdp Nov 15, 2008

    6 cylinder 4 wd

  • Anonymous Jan 20, 2009

    leaking antifreeze from waterpump

  • pat  murray
    pat murray May 11, 2010

    what engine??

  • Anonymous Mar 22, 2014

    Water pump replacement

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2 Answers

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Done

Posted on Nov 17, 2008

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If you have any questions feel free to ask. Let me know if you dont get diagrams(happens sometimes)

change water pump - 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.
    • Negative battery cable
    • Electric cooling fan connector
    • Accessory drive belt
    • Engine cooling fan and pulley
    • Water pump pulley
    • Power steering pump
    • Lower radiator hose from the water pump
    • Heater hose
    • Water pump and discard the gasket
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
  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:
    • Negative battery cable
    • Fan and clutch assembly from the pump
    • Fan shroud and fan assembly. If you’re reusing the fan clutch, keep it upright to avoid silicone fluid loss!
    • Lower hose
    • Water pump (8 bolts)
  4. Installation is the reverse of removal. Tighten the bolts, in sequence, to 40 ft. lbs. (54 Nm). Water pump tightening sequence—3.7L

Posted on Nov 15, 2008

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SOURCE: I have a 2002 Jeep Grand Cherokee Laredo with the

If you put the thermostat in correctly (spring towards the engine) that should be OK. Likely if the water pump wasn't leaking or had a bad bearing, you wasted your $ on that.
If you re-filled it and did not have the heater on high heat, you may have some trapped air in there. But, still overheating says another thing. If you have a blown head gasket, it can pump compression into the cooling system and drive the coolant from the core. It will also overheat. You can have that tested at most any decent shop that will do a hydrocarbon test to find that.I think someone makes a chemical test kit for that but not sure if it's very expensive or not. White smoke from tailpipe will also be an indicator as will be any coolant in the engine oil or coolant on one or more spark plugs. If it turns out that it has a head gasket problem don't stop looking for problems as often a faulty fan or obstructed radiator can cause the initial overheat that caused the gasket to fail.

Posted on Jan 16, 2010

Testimonial: "Thank you. I was hoping not to hear head gasket, but that's where it seems to be leaning towards."

  • 1 Answer

SOURCE: 2002 jeep cherokee laredo

My 98 Jeep Grand Cherokee had the same problem. Over heated when standing still. Took it to dealer and they could not find any problem with cooling fan. After doing my own investigation I found out that the electric cooling fan would begin to seize up after about 1hr. of operating. (gets hot)

The dealer would look at fan and see that it was running and think its ok. The problem is, it wasn't running fast enough.

I have a relay on the right side of front fender and jumped the fan to stay on with motor off. (must know what your doing). After about 1hr. fan started slowing way down. Returned it to dealer told them what the problem was. They were not smart enough to jump the relay so they put a couple hundred miles on it even though i told them it works OK when moving. Make sure you tell dealer to use the relay to jump.
Replace cooling fan motor. Works great

Posted on Feb 27, 2009

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I have a 2002 Jeep Grand Cherokee Laredo with the


If you put the thermostat in correctly (spring towards the engine) that should be OK. Likely if the water pump wasn't leaking or had a bad bearing, you wasted your $ on that.
If you re-filled it and did not have the heater on high heat, you may have some trapped air in there. But, still overheating says another thing. If you have a blown head gasket, it can pump compression into the cooling system and drive the coolant from the core. It will also overheat. You can have that tested at most any decent shop that will do a hydrocarbon test to find that.I think someone makes a chemical test kit for that but not sure if it's very expensive or not. White smoke from tailpipe will also be an indicator as will be any coolant in the engine oil or coolant on one or more spark plugs. If it turns out that it has a head gasket problem don't stop looking for problems as often a faulty fan or obstructed radiator can cause the initial overheat that caused the gasket to fail.

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