Back to all

Cooling System Components

September 6, 2022

Today we want to talk about a system in our vehicles – the cooling system. It's one of those things that Fort Wayne auto owners don't give much thought to until it fails and then they're stranded by the side of a road in IN.

Cooling systems fail more often than any other mechanical system – usually because of neglect. Don't you hate it when something breaks and you could have done something to prevent it?

The good news is that if Fort Wayne drivers take care of their cooling systems, they can keep working for the life of their car.

Here at Tuffy Fort Wayne - Dupont Rd. in Fort Wayne, we emphasize preventive maintenance services like replacing your coolant according to the factory schedule. But the various parts that make up the cooling system need attention too. The major components of the cooling system are the water pump, freeze plugs, the thermostat, radiator, cooling fans, the heater core, the pressure cap, the overflow tank and the hoses.

It sounds complicated, but we Fort Wayne residents don't have to be experts – we can leave that to our friendly and knowledgeable service advisor at Tuffy Fort Wayne - Dupont Rd.. But, having an overview will help us remember how to take care of your car's cooling system.

Most Fort Wayne folks would be surprised to know that burning fuel in your engine produces up to 4,500 degrees F/2,500 degrees C of heat. And all that heat has to be dealt with. If the heat can't be drawn off the engine, the pistons will literally weld themselves to the inside of the cylinders – then you just have to throw the engine away and get a new one. That would cost thousands of dollars.

Now the water pump is what forces the coolant through passages in the vehicle engine to absorb heat. The pump is driven by a belt that needs replacement from time to time. And the water pump will eventually wear out and need to be replaced. Spending some cash on replacing the belts and water pump is much less than the cost of repairing the extremely massive damage that can be done when an engine seizes.

There's another little known but important part of the coolant system that protects the engine. It's called a freeze plug. If you remember from high school chemistry, water expands when it freezes. In very cold areas, the coolant can actually freeze when the vehicle is left sitting.

It is hard to believe, but the expanding frozen coolant is enough to actually crack the engine block. The freeze plugs fit into the engine block. They fit tight enough to withstand the pressure of a running engine, but can expand or pop out if the coolant freezes. These little things save a lot of engine blocks.

The team at Tuffy Fort Wayne - Dupont Rd. can check your cooling system and make any necessary adjustments or repairs. Give us a call.

Tuffy Fort Wayne - Dupont Rd.
1910 W. Dupont Rd.
Fort Wayne, IN 46818
260.489.4800

More articles from Tuffy Fort Wayne (Dupont Rd.)

Don?t Meddle with the Pedal (Brake Caliper Replacement)

December 7, 2025

If you drive a newer vehicle, chances are it has disc brakes, and one of the components of that type of brake is called a brake caliper. The caliper allows the pressure from your foot on the brake pedal to eventually move brake pads against discs in your wheels, which then slow and stop your veh... More

NOT JUST ANOTHER CUSTOMER (Finding the Right Service Facility)

November 30, 2025

You might remember a hit TV sitcom that was set in a bar, a place where "everybody knows your name." The idea, of course, is people feel more comfortable where they aren't just another customer among many; they're special because their relationship goes back a few years. That comfortable relat... More

(Ball Joint Replacement)

November 23, 2025

Every day that goes by, our bodies get a little more wear and tear on them. Our vehicles have the same issue. The older we get and the farther we travel, certain parts start showing some wear. Think of your hips. There are parts of our vehicles that are similar to them; just like hips allow y... More