Fix Coolant Leaks: 2018 Jeep Wrangler JK Unlimited Sahara 3.6L V6

Jeep Wrangler JK Model Years - 2018

How to fix a radiator and coolant leak with stop leak

Author

Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.

2018 Jeep Wrangler JK Unlimited Sahara 3.6L V6 Lights Parking Light (replace bulb)

Small bulbs that burn out regularly - did you know you can replace these with LED lights?

2018 Jeep Wrangler JK Unlimited Sahara 3.6L V6 Coolant (Antifreeze) Add Coolant

Low coolant levels is all to common - top yours up today

2018 Jeep Wrangler JK Unlimited Sahara 3.6L V6 Lights Highbeam (replace bulb)

On many cars, the high beam bulb runs at reduced power during the day - check 'em and change 'em!

2018 Jeep Wrangler JK Unlimited Sahara 3.6L V6 Windshield Wiper Blade (Front) Replace Wiper Blades

Did you know that the sun wears out wiper blades faster than rain? Replace your blades twice a year

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Video Description

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2018 Jeep Wrangler JK. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Wrangler JK engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Wrangler JK engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2018 Wrangler JK with the 3.6 liter engine. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Otherwise, your Wrangler JK may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2018 Wrangler JK Unlimited Sahara are located and the steps needed to fix minor leaks.

A few things to note about coolant is that it is sweet tasting and highly toxic, so it can end up in the dog's stomach pretty quickly. If you ignore a small coolant leak long enough, you will run out of coolant, which leads to an overheated engine and other serious, but highly avoidable, problems. An anti-freeze leak can cause the temp sensor to record high engine temperatures in a 2018 Jeep Wrangler JK. Always protect yourself with safety glasses and gloves when working with the coolant on your Wrangler JK.

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