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2006 Ford Explorer or 2006 Mercury Mountaineer 4.0L Coolant Leak

Do you own a 2006 Ford Explorer or 2006 Mercury Mountaineer 4.0L?

  • Do you see small pools of yellow fluid in your driveway or garage?
  • How about yellow, crusty staining under the hood?
  • Can you smell a sweet ethylene glycol odor when you get out of your SUV?
  • Is your engine running hotter than usual, or overheating?

If this sounds like your faithful Ford, you are probably leaking coolant (antifreeze) from under the front of your SUV, and your radiator is most likely leaking.

What is a radiator?

A radiator is used for cooling the engine and consists of a bank of thin tubes in which circulating antifreeze is cooled by the surrounding air. A properly functioning radiator is very important and necessary to help maintain proper engine operating temperatures.

Do I need to replace my radiator right away, or can I put this repair off?

You should not delay this repair. If you have a leak in your cooling system, you should have it inspected and diagnosed properly as soon as possible. If you wait too long, you are risking a major break down and possibly looking at replacing your engine.

Get cooling system diagnosis estimates from nearby shops

What should I do if my 2006 Ford Explorer or 2006 Mercury Mountaineer is leaking coolant?

To avoid a possible larger repair or breakdown on the side of the road, you should not delay routine maintenance. Using the Openbay app or website, you can easily compare local shops by distance, customer reviews, and price. Service estimates include parts, labor rate and taxes, so you’ll know the exact price you’ll be paying before you get to the shop!

We know scheduling car repair and maintenance can be stressful. But the truth is, it doesn’t have to be. Openbay is hassle-free car repair for the modern world. Get competitive estimates from high-quality shops nearby, then schedule an appointment and pay securely online. All services booked with Openbay are backed by our Peace-of-Mind Guarantee, and you’ll earn Openbay Rewards on every completed service.

Article written by an ASE Certified Technician

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How Openbay Works

  • Tell us about your auto service needs

    Openbay offers hundreds of maintenance, diagnostic, and repair services: from oil changes and brake jobs, to major suspension, electrical, and engine work. If you're not sure, describe the problem and we'll make recommendations.

  • Get estimates from nearby shops

    We get you detailed service estimates from our network of thousands of auto shops — usually within a few seconds. Compare on price, location, ratings, amenities, and more.

  • Book and pay securely online

    Once you choose a shop, book an appointment that fits your schedule. When service is complete, you authorize Openbay to make a contactless payment with your saved card.

  • Earn Openbay Rewards

    When you complete a service, you earn 1% of the invoice total as Openbay Rewards. They're instantly added to your account for use on your next service.

  • Manage your maintenance history

    When you create an account, your service history and upcoming appointments are always available online. Time to clean out the glove box!