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Jeep Wrangler TJ Radiator

Safekeeping Tips for a Longer Jeep Wrangler (TJ) Radiator Lifespan

Keeping your radiator in good condition prevents engine failure. This is primarily because your car's cooling system gets air through the radiator when the vehicle is running. With continued use, your Jeep Wrangler (TJ) radiator can get damaged and eventually fail. To extend the lifespan of your vehicle's radiator, perform necessary care and maintenance routines such as below:

  • Wash the radiator fins once a year.

Make it a habit to clean the radiator's exterior every 12 months. You can do this in an hour or less, depending on how familiar you are with the radiator and its nearby components. Just be sure you have the tools prepared, including a hose with nozzle and a soft-bristle nylon brush.

Once your car has cooled down, use the nylon brush to cautiously brush the radiator fins. Brush them in the direction of the radiator fins, as brushing them in the wrong direction can cause it to get deformed. Also, be gentle when brushing the fins, as these can break if you brush too hard. After brushing the fins, rinse off the radiator body using moderate streams of water. Avoid using pressurized or very strong streams of water, as the radiator fins can get bent.

  • Monitor the radiator fluid level.

Check your vehicle's radiator level regularly by opening the hood and looking for the radiator fluid overflow receptacle. This side tank is usually attached to the edge of the engine compartment. Examine the indicators to determine your radiator fluid level. When the fluid level is already low or empty, refill the tank with new fluid; make sure you keep a 50/50 mixture of radiator fluid and mineral-free water.

If you notice that the radiator fluid level is always low, then you probably have a leaking radiator. Check the hoses, as well as the radiator body, and find the leaks. Fix the leaking components as soon as you spot them to prevent further damage to the radiator system.

  • Perform a radiator flush once a in a while.

Keep radiator problems away by flushing the radiator every now and then. Be careful when opening the radiator, because the fluid can erupt and leave you with burns. Never take out the radiator cap when the engine is still hot. Once the radiator is flushed, clean the radiator first before refilling it with new fluid.

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  • Spot a Faulty Jeep Wrangler (TJ) Radiator with These Indicators

    Your car's radiator plays a crucial role in the cooling system of your vehicle. It enables the engine to maintain proper operating temperature, while cooling it at the same time to prevent overheating. When your Jeep Wrangler (TJ) radiator gets busted, the engine may overheat and the pistons may crack. To identify a faulty radiator, here are some of the most common problems you can use as reference:

    Tip #1: You discover leakage in the radiator.

    When you find signs of leakage in the engine compartment, there's a huge possibility that the radiator has been compromised. One sure sign of leakage is when you find a puddle of liquid accumulated under the engine while your car is parked or not in use.

    Have your radiator checked immediately, because leaving it unattended can lead to major damage to the engine and other related components. Remember that the leaking radiator fluid is poisonous to humans and animals. If you find fluid puddles that are not green or red in color, then it's most probably caused by a different faulty component.

    Tip #2: Your car overheats when idle or at low speeds.

    Modern vehicles are equipped with electric fans that allow proper air flow into the radiator to keep the car cool, especially when driving at low speeds. If you notice that your vehicle doesn't have any problems when you're on the freeway, but overheats in traffic or at idle, then you most likely have a broken radiator fan. Examine the radiator to confirm if the fan is the root of the problem. Once verified, it's highly recommended that you change it as soon as possible to prevent your car from stalling or other major issues.

    Tip #3: You observe lower pressure levels in the radiator.

    Due to corrosion, your Jeep Wrangler (TJ) radiator will be unable to produce the proper amount of pressure needed for operating the vehicle. A healthy radiator should be able to produce between 10-12 PSI; any pressure level lower than that indicates a radiator problem.

    You can use a pressure gauge to determine the pressure coming from the radiator. Just fit the device on top of the radiator cap, and measure the pressure while the engine is running.