Fix Coolant Leaks: 2018 Nissan Pathfinder S 3.5L V6

Nissan Pathfinder Model Years - 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020

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 Nissan Pathfinder S 3.5L V6 Lights Daytime Running Light (replace bulb)

DRLs are on more than your headlights. They burn out faster and should be replaced regularly

2018 Nissan Pathfinder S 3.5L V6 Air Filter (Cabin) Replace

Dirty cabin air filter cause undue wear on your car's heater and AC and can cause bad odors

2018 Nissan Pathfinder S 3.5L 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

2018 Nissan Pathfinder S 3.5L V6 Lights Highbeam (replace bulb)

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

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Video Description

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2018 Nissan Pathfinder. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Pathfinder engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Pathfinder engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2018 Pathfinder with the 3.5 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 Pathfinder may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2018 Pathfinder S 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 Nissan Pathfinder. Always protect yourself with safety glasses and gloves when working with the coolant on your Pathfinder.

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