answersLogoWhite

0


Best Answer
Copy

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.

This is only how to flush collant and not replace thermostat as stated on top of this forum.

User Avatar

Wiki User

โˆ™ 2010-03-02 03:14:34
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0
User Avatar

Add your answer:

Earn +5 pts
Q: How do you replace the thermostat located on a 1999 Jeep Grand Cherokee Laredo?
Write your answer...
Submit

Related Questions

Where is the thermostat located on a 1995 Jeep Grand Cherokee Laredo?

The thermostat is under the housing where the upper radiator hose attaches to the engine.


Where is the thermostat located on a 1997 Jeep Grand Cherokee Laredo 6 cylinder?

The thermostat is located at the termination of the upper radiator hose directly behind the fan.


Where is the thermostat is located on a 2002 Jeep Cherokee Laredo?

no picture needed, just follow the top radiator hose to where it attaches to the engine and you have found it


1997 Jeep Grand Cherokee Laredo where is the security alarm located?

How do you disarm the security lock on a 1995 Jeep Grand Cherokee Laredo?


How do you replace the water pump on a 2004 Jeep Grand Cherokee Laredo?

How do I replace water pump on 2004 jeep grand Cherokee


Where is the thermostat located at in a 2000 Jeep Grand Cherokee Laredo?

4.0L it is under the housing that the upper radiator hose hooks to. 4.7L it is located under the housing that the lower radiator hose hooks to.


Where is the temperature sender located on a 2002 Grand Cherokee Laredo 4.0?

The engine coolant temperature sensor is the sensor that is screwed into the thermostat housing on the top front of the engine.


Where is the security alarm located in a 1993 Jeep Cherokee Laredo?

== == We found it located in behind the right side of dash board, in behind the glove box. For our 1993 Jeep Grand Cherokee Laredo


Is a 1994 Laredo door harness compatiable with a 1994 Jeep Grand Cherokee?

Cherokee Laredo, no. Grand Cherokee Laredo, yes.


What caused my Jeep Grand Cherokee Laredo to overheat?

water pump or cooling fans or thermostat low coolant


Where is the fuel pump located on a 1990 Jeep Cherokee Laredo?

It Is In The Gas Tank


Where is the oil pan on a 2006 Jeep Grand Cherokee Laredo located?

On the bottom.


Where is the transmission located on a 1998 Jeep Grand Cherokee Laredo?

Behind the engine.


Where is the thermostat located on a 1995 Jeep Grand Cherokee Laredo V8?

locate the upper radiator hose on your radiator and follow it to the engine block it is located on the top front part of your engine and you must lean over the front and look down onto the block to see the thermostat housing.


Does the heater hose on a jeep grand Cherokee Laredo connect to the thermostat housing?

On a 4.0L, yes one of the heater hoses does.


What does the temperature sensor attached to the thermostat housing do on a 2000 jeep grand Cherokee Laredo?

it tells the radiator fan when to turn on


Where is the ECU of a 1993 jeep grand Cherokee Laredo located and How do I take replace it?

in the engine compartment on the firewall right in front of the passenger and right behind the coolant bottle.


Where is fuse located for power windows on 1994 Grand Cherokee Laredo?

it is #26 30amp


Where is the cam sensor located in a 4.0 engine in a 1996 Jeep Cherokee Laredo?

It is in the distributor.


Where is the fuel tank located on a 1995 Jeep Grand Cherokee Laredo?

Rear of the jeep


Where is the output crank sensor located on a 1995 jeep Cherokee grand Laredo?

in a toilet


Where is the thermostat located at in a 2005 Jeep Grand Cherokee Laredo?

On the 3.7L and 4.7L it is under the housing where the lower radiator hose attaches to the engine. On the 5.7L it is under the housing where the upper radiator hose attaches.


How do change cooling fan on a 2002 cherolee Laredo?

There is no such thing as a 2002 Cherokee Laredo. The last year for the Cherokee was 2001, and the last year it came with the Laredo trim was 1992. I have a 2003 Cherokee Laredo so this awnser makes no sense at all. Do you have a GRAND Cherokee Laredo? Those are still being made. They are not the same as the Cherokee.


Where is the starter located on a 1989 Jeep Cherokee Laredo?

starter is located on passenger side on block near transmission,


Is a Jeep Cherokee and Jeep Cherokee Laredo similar?

Yes, Laredo is just a trim package.