Question about 2004 Jeep Liberty

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How to drain and refill coolant in a 2004 Jeep 3.7L Liberty?

How do I drain the coolant and since there is no radiator cap - how do I refill?

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You drain it from the radiator petcock on the bottom and you fill it from the overflow tank however I seem to remember those cars as having a radiator cap if i'm not mistaken it is on the passenger side if not in is the overflow tank

Posted on Sep 23, 2009

  • alfred winter Jul 21, 2013

    it has a cap on the top of the radiator but i am having trouble getting it off

  • alfred winter Jul 21, 2013

    is there a way to get the cap off ?. anyone ?

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Through the coolant reservoir on the back passenger side of the engine bay.

Posted on Sep 23, 2009

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1 Answer

I had my radiator replaced after an accident in my 2004 jeep liberty. the temp gauge never said it was overheating but it took a dump on me yesterday for the last couple weeks the "cold fill" take has been...


The easiest way is to usually just remove the lower radiator hose. All of the coolant will come out in a couple of minutes so you will need to have a big bucket. Around 3-4 gallons will come out. It sounds like the shop used too much water in the coolant mix. It is supposed to be 50/50 or better(better being more than 50% straight coolant) and water. If you drain what they put in there and refill with straight coolant ( not the premix from the store but rather the non-mixed stuff) you probably wont even have to go back to the mechanic.
Your coolant sounds like it is boiling which can be very bad for the engine. Once you remove the lower radiator hose, just reconnect it and fill it back up. It will be the largest hose going into the radiator at the bottom of the radiator. There may be a bleed screw on the top of the thermostat housing. If so open it with the car running till coolant bleeds out in a steady stream then close it and your done.

I hope this helps!! Thanks!!!

Oct 06, 2010 | 2004 Jeep Liberty

1 Answer

2002 Jeep Liberty started to overheat after changing coolant hoses and refilling system.Should I replace the Thermostat?


most likely you have air in the system and need to get air out remove radiator cap and let engine run till it gets hot.

Apr 03, 2010 | 2002 Jeep Liberty

3 Answers

Where is the drain plug for the radiator


Should be a drain **** at the bottom of the radiator that unscrews out. It looks like a wing nut has been welded to a bolt on the end of it. Another way to do this is just pull off the bottom hose.

Mar 31, 2010 | 2001 Jeep Cherokee

2 Answers

How to flush radiator in a 2004 Mitsubishi endeavor


Drain your existing coolant from the coolant system there should be a drain petcock on your radiator along the bottem. Once the coolant is drained add water and a radiator flush solution, availeable from most auto parts stores, refill your coolant system and run your engine usually 10 minutes or more. Check the instructions on the type of cleaning solution you buy. Afterward drain the coolant system, flush with water by filling and running it again, then drain and service with proper level of coolant. Always remember to let your engine cool between runs to safely remove your radiator cap DO NOT remove the radiator cap if engine is still hot from running.

Nov 04, 2009 | 2004 Mitsubishi Endeavor

2 Answers

Where is the thermostat sensor


Both the 4.0L and 4.7L engines use 195� thermostats for all model years from 1999-2004. When replacing a thermostat it is very important to install one with the same temperature rating (the only exception might be with certain performance modifications or chips that recommend or require a different temperature thermostat).

4.0L engine - Draining the cooling system WARNING: DO NOT REMOVE THE CYLINDER BLOCK DRAIN PLUGS OR LOOSEN THE RADIATOR DRAINCOCK WITH SYSTEM HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT CAN OCCUR.

1. DO NOT remove radiator cap first. With engine cold, locate radiator draincock on the right lower side of radiator facing to rear of vehicle.
2. Attach one end of a hose to the draincock. Put the other end into a clean container. Open draincock and drain coolant from radiator. This will empty the coolant reserve/overflow tank. The coolant does not have to be removed from the tank unless the system is being refilled with a fresh mixture. When tank is empty, remove radiator cap and continue draining cooling system. To drain the engine block of coolant, remove the cylinder block drain plug, located on the side of cylinder block below the exhaust manifold.

4.0L engine - refilling the cooling system Coolant recommendations and cautions: The recommended mixture is 50/50 ethylene-glycol and low mineral content water. Never use pure antifreeze. Only Mopar Antifreeze Coolant, 5 Year/100,000 Mile Formula (glycol base coolant with corrosion inhibitors called HOAT) is recommended. This coolant offers the best engine cooling without corrosion when mixed with 50% distilled water. Antifreeze mixture must always be at least 44%, all climates year round. Maximum protection (-90d) is provided with a 68% mixture protection. If the percentage is lower than 44 percent, engine parts may be eroded by cavitation, and cooling system components may be severely damaged by corrosion. CAUTION: Mopar Antifreeze/Coolant, 5 Year/100,000 Mile Formula (MS-9769) may not be mixed with any other type of antifreeze. Mixing of coolants other than specified (non-HOAT or other HOAT), may result in engine damage that may not be covered under the new vehicle warranty, and decreased corrosion protection.

CAUTION: Do not use coolant additives that are claimed to improve engine cooling. 4.0L coolant capacity: 1999-2000: 13.0 qts. (including 2.3 qts. for resevoir) 2001-2004: 15.0 qts. (including 1 qt. for resevoir)

1. Tighten the radiator draincock and the cylinder block drain plug(s) (if removed).
2. Fill system using a 50/50 mixture of ethyleneglycol antifreeze and low mineral content water. Fill radiator to top and install radiator cap. Add sufficient coolant to the reserve/overflow tank to raise level to FULL mark.
3. With heater control unit in the HEAT position, operate engine with radiator cap in place.
4. After engine has reached normal operating temperature, shut engine off and allow it to cool. When engine is cooling down, coolant will be drawn into the radiator from the reserve/overflow tank.
5. Add coolant to reserve/overflow tank as necessary. Only add coolant to the reserve/overflow tank when the engine is cold. Coolant level in a warm engine will be higher due to thermal expansion. To purge the cooling system of all air, this heat up/cool down cycle (adding coolant to cold engine) must be performed three times. Add necessary coolant to raise tank level to the FULL mark after each cool down period.

For more details, you can refer to the Jeep WJ Service Manual Section-07-Cooling-System-Ewj7

Hope helped.

Nov 02, 2009 | 1999 Jeep Grand Cherokee

1 Answer

How do fill the radiator with fluid in 2004 jeep liberty


Add coolant 50 / 50 mixture water to coolant in the overflow resovoir...

Oct 24, 2009 | 2004 Jeep Liberty

2 Answers

Im trying to change the antifreeze but it has only one cap on the plastic and not on the raditor would that be a prob when change


Best way to change the antifreeze is to open the petcock at the bottom of the radiator to drain the antifreeze/coolant. Once completely drained close the petcock and refill. Only other way would be to get a flush kit which involves cutting a heater hose, inserting a T and running a garden hose through the system with the radiator open at the bottom through the petcock while the motor is running.
Hope this answers your question. Good luck!
Greg

Aug 14, 2009 | 2004 Jeep Liberty

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