Fix Coolant Leaks: 2009 Ford Flex SEL 3.5L V6

Ford Flex Model Years - 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019

1. Getting Started - Prepare for the repair

2. Set Up Paper - Position paper and mark wheels

3. Assess Leak - How to determine if the leaking fluid is coolant

4. Open the Hood - How to pop the hood and prop it open

5. Find Reservoir - Locate the coolant reservoir and clean it

6. Check Level - Determine the coolant level

7. Fix Minor Leaks - Easy way to tackle minor coolant leaks

8. Replace Cap - Secure the coolant reservoir cap

9. More Info. - Additional information on minor coolant leaks

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.

Share on   Share on Twitter   Share on Facebook
Parts & Tools
We may earn a commission from qualifying purchases as an Amazon Associate
Video Description

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2009 Ford Flex. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Flex engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Flex engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2009 Flex 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 Flex may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2009 Flex SEL 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 2009 Ford Flex. Always protect yourself with safety glasses and gloves when working with the coolant on your Flex.

  • Advance Auto coupon for
    20% off entire order: KIOSK20
2009 Ford Flex SEL 3.5L V6 Brake Fluid Add Fluid

If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems

2009 Ford Flex SEL 3.5L V6 Jack Up Car Use Your Jack to Raise Your Car

Where is the jack location, jack points and other tips on jacking up a vehicle

2009 Ford Flex SEL 3.5L V6 Oil Check Oil Level

Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary

2009 Ford Flex SEL 3.5L V6 Brake Fluid Check Fluid Level

Stop! Checking your brake fluid from time to time is a great way to ensure safe stopping