Back to all

How Cool is That! (Coolant level sensor replacement)

April 19, 2026

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?

Top Tech Auto Repair Clawson
664 S Rochester Rd
Clawson, Michigan 48017
248-589-0980
www.toptechautorepairclawson.com

test

Need Service?

More articles from Top Tech Auto Repair Clawson

Good Timing: Proper Timing Belt Replacement Saves Money for Clawson Drivers

June 7, 2026

Knowing how their engine works can help Clawson drivers make informed decisions about auto care and prevent repairs to their vehicles. This is especially true when it comes to timing belts.An engine's power is generated in the cylinders. Inside the cylinder is a piston that moves up and down wh... More

Hey Clawson Drivers, How Many Miles Are on Your Car?

May 31, 2026

Nowadays, Clawson drivers are paying more at Michigan gas pumps. For some families it adds up to several hundred dollars every month. That's got to come out of the budget somewhere. This is one of the reasons many Michigan drivers are putting off buying a new car. They plan on keeping their old v... More

In the Red (Why a Vehicle Overheats)

May 24, 2026

Heat is one thing that can damage a vehicle, especially if a problem isnt taken care of soon. Be on the lookout for signs that its getting too hot in some parts of your vehicle, starting with the most obvious one: the heat gauge/warning light on your instrument panel. When you see that heat gaug... More