Flushing the old coolant from your Jeep grand Cherokee ensures the your radiator cools her engine in ~ its complete potential. Here"s just how to perform it yourself.

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This article uses to the Jeep cool Cherokee WJ (1994-2004).

As you can imagine, maintaining your Jeep cool Cherokee"s engine cool is just one of the most crucial things you have to do come lengthen her engine"s life and also protect it. The radiator is designed come cool down the warm coolant flowing through the engine. End time, dirt and also debris can develop up within of the radiator, together with your antifreeze shedding its acidity, which stays clear of it from working at its full potential, maintaining it native cooling the engine properly. Flushing the device ensures the flow of coolant is smooth through the radiator and ensures over there is fresh antifreeze to cool the engine down as much as possible, which renders this procedure a very important one to execute every other year or so, depending upon your driving and also the high quality of antifreeze you use. The process is simple and shouldn"t take much more than one hour. Check out on to learn exactly how to do the washing up your very own radiator.

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Figure 1. Radiator is located in the prior of your engine, between it and the grill.

Step 1 – drain old coolant

Open the radiator"s lid on optimal of the radiator, under the hood. Situate the radiator"s drain plug under the radiator. It"s located on the bottom that the radiator top top the passenger"s side. Location the huge container underneath it to collect the old coolant, and loosen it by twisting it counterclockwise.

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Figure 2. Radiator"s plastic drainpipe plug.Figure 3. Drainpipe coolant into a container.
Pro Tip

You don"t need to raise your car since the Jeep grand Cherokee is high sufficient for you to locate the drain plug.


Step 2 – do the washing up radiator

After you"ve let all the coolant drain from the radiator and into the container, tighten the drain plug. To fill the radiator with distilled water, nearby the radiator"s cap, and also let the automobile run because that a couple of minutes through the heater on. This will allow the thermostat to open. Flush the radiator again by opened up the cap and also removing the drain plug come let every the water drain. Repeat this process two to three times, or till you check out clear water draining native the radiator.

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Figure 4. Fill water v the cap and drain through the drainpipe plug.

Step 3 – to fill radiator through coolant

When you lastly start seeing clear water draining from your radiator, permit the radiator drain completely, climate close the drainpipe plug. To fill the radiator with the radiator"s cap v 50/50 mix that distilled water and antifreeze. A many coolant comes currently mixed for you. Start the vehicle and also let it operation for a few minutes through the overflow reservoir"s lid off, till the thermostat opens, then refill the radiator earlier to the top. After the level is continuously full, be certain to refill the radiator"s overflow reservoir to the max.

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Figure 5. Coolant overflow tank (passenger"s side).

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Pro Tip

Dispose the old coolant correctly by taking it to your nearest auto store; they will dispose it because that free. Don"t pour it down the drain.