Question about 2000 Jeep Grand Cherokee

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2002 jeep cherokee put new water pump and thermast in still getting hot like water is not flowing cheack top radiator hoses and its hot bottem hose is cold is it a bad radiator what can i do???

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  • Jeep Master
  • 2,122 Answers

Hi David, How long did you run the engine before checking the temperature? The thermostat will only begin to open when the engine has warmed and the gauge begins to move. If after giving it a correct warming period it has still remained cold, I suggest the following. As you have already replaced the water pump, thermostat and radiator cap, the radiator may be blocked. Carry out a back flush, meaning, use a good quality radiator flushing chemical and follow the instructions carefully. Run the engine in accordance with the instructions. Let the engine cool and then draining, flushing the system by connecting a hose pipe with a fairly good head of pressure against the usual direction of flow. If that fails you may need to replace the radiator. Let me know how you get on, Happy new year Regards John

Posted on Jan 01, 2013

  • davidmaybush Jan 03, 2013

    thank it work and runs great

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: engine over heating 2002 jeep 4.0 liter

Check water pump and make sure that its working. Should be circulating antifreeze in radiator and in engine. You can also check and the head gasket and make sure its NOT blown. Good luck and thanks for using FIX YA

Posted on Mar 03, 2009

  • 142 Answers

SOURCE: 1996 Jeep cherokee, leaking coolant when cold/ hot ok.

waterpump houseing/shaft seal is on the way out hence the water/coolant, running along the block. when hot the seal does so, when cold and depressurising seal doesnt.

Posted on Jan 25, 2009

emissionwiz
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SOURCE: Overheating Jeep!!

did u properly bleed the air out of the cooling system? if u are not sure raise the front of the jeep as high as u can with a floor jack, fill the coolant recovery bottle all the way up with 50/50 coolant mix and run the engine until it gets hot, then shut it down and run cold water over the radiator core, this will cause the air to bleed out and the coolant in the recovery tank to be sucked in, watch the level in the recovery while u do this, don't let it run dry. If this doesn't cure the problem you have other problems like a poss blown head gasket.

Posted on May 10, 2009

  • 508 Answers

SOURCE: Hose from the front differential.

This hose you refer to is the breather tube for the differential. It connects to a fitting at the top of the differential housing and runs up the back side of the radiator so you won't run the risk of water entering the differential if you submerge the front axle in water. Reconnect the rubber hose to the fitting on the differentail.

Posted on Jan 17, 2010

Suzman
  • 642 Answers

SOURCE: 1999 jeep grand cherokee laredo

Try these troubleshooting tips before replacing anything else.

Posted on Nov 01, 2010

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Flow diagram attached-

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Change the thermostat. Depending on the models it might just be 10 or less. Should sit on top. Follow the top hose from your radiator to the engine and you will see where the hose stops. Right there is your thermostat. You need to make sure you get one tha thas a gasket. Easy thing to do yourself with minimal tools. Good luck

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I just had this problem and thought it was the thermostat also. Installed a new thermostat and still had the same problem. It ended up being the water pump. When we got the old one out all of the blades were totally rusted off and it wasn't circulation the water.

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Overheats gets hot on the top of the motor but at bottom hose from thermastate it is cold changed radiater and put in two thermastates still gets hot help


1. In order to eliminate, remove the thermostat altogether, for now.
2. Make sure the heater bypass hose is working. You could route the hose going into the interior heater and bypass the heater also.

It should eliminate a lot!

Next, consider the water pump.

Hope this helps!


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Thermastate and high heat


Yes i would check if your radiator fin turns on when the engine gets warm.
Most likely thats the cause.

Jul 11, 2009 | 2002 Jeep Grand Cherokee

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2001 jeep grand cherokee water pump problem


Make sure that all the air is out of the system. One of the best ways is to start filling from the top and remove the bottom hose. Let it do this for about 1 minute then attach the bottom hose. stop the water flow and squeeze the top line a couple of times and look for air bubbles

Feb 14, 2009 | 2001 Jeep Grand Cherokee

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