Back to all

How Cool is That! (Coolant level sensor replacement)

August 10, 2025

Your vehicle’s engine runs hot.  It should, since it’s a series of little explosions that create the power that gets you going where you want to go.  To keep the engine cool, engineers have designed wonderful cooling systems that use liquid coolant, hoses, and a radiator to transfer the heat from the engine to the outside air. 

In order for the system to work right, it has to have the right amount of that liquid coolant in it.  So that you know when the coolant has dipped below the correct amount, there is a sensor that keeps an eye on it.  When the coolant gets low, that sensor lights up a signal on the dash to alert you.  It may literally say “Check Coolant” or it may have a picture that looks like an old-style bulb thermometer sitting in liquid.  Your owner’s manual will usually tell you exactly what the one in your vehicle looks like.

If that sensor system isn’t working right, you could wind up driving for a long time with not enough coolant in the engine, and the excess heat can cause some extensive—and expensive—damage. 

There are a couple of ways you will know if something’s wrong with your coolant level sensor.  One is when you top off the coolant tank, and the low coolant light stays on.  If you suspect yours might be having a problem, bring it in so we can thoroughly check your coolant system.

If it is a sensor, we can run a test to see where the problem is in your cooling system.  It could be a bad sensor, but it also could be that there is something causing your coolant level to be low.  If the sensor needs replacing, the technician will replace it, fill your coolant level to the manufacturer’s recommended level, and test for any leaks in the system.  Really, how cool is that?

Tuffy Orlando (East Colonial)
10938 East Colonial Drive
Orlando, FL 32817
4073840100
http://tuffyeastcolonial.com

test

Need Service?

Schedule Service

More articles from Tuffy Orlando (East Colonial)

Pinch Petroleum Pennies! (Fuel Saving Tips)

February 1, 2026

If you saw a dollar bill on the ground, you'd pick it up, right? Well, whether you find that dollar on the ground or in savings at the gas pump, money is money, and here are some ways to hold on to more of it. Slowing down is the easiest way to save fuel, especially for every speed increase over ... More

Timing is Everything (Timing Belt)

January 25, 2026

Talk about exquisite choreography; it happens under the hood of your vehicle every time you take a drive. Your engines many complex parts must work exactly together. One key is a part called a timing belt, which enables the synchronizing of two of your engines components, the camshaft, and the ... More

Water Everywhere (Clogged Drains)

January 18, 2026

It's bad enough when you mistakenly leave a window open in your vehicle on a rainy day and you find your carpet soaked. But what in the world is going on when your windows are closed tight, not leaking and you STILL wind up with wet carpet? The answer could be something you might not even know y... More