It's hot out there. Let's talk cooling system.

We're often asked questions in Centennial, Aurora, and Parker, CO about the cooling system – the system that cools your engine and keeps it at the proper operating temperature. Let's examine the topic in two areas: first the coolant itself and, second, the parts that make up the cooling system.

The coolant in you vehicle is the mix of water and antifreeze that circulates through the engine to draw off heat. First, you need to have the proper amount. If you don't have enough coolant it can't keep your engine cool.

You also need the right kind of coolant. Different makes of vehicles require different coolant formulation to protect against corrosion.

Finally, your coolant needs to be fresh. Over time and miles, the anti-corrosion additives in the coolant are depleted and the coolant can actually start to eat away at the cooling system parts. Your owner's manual and your Keller's Pro Auto & Diesel service adviser in Parker, CO can help you with the recommended coolant replacement schedule and make sure you're getting the right type of coolant.

Now let's talk about the cooling system components. These will all eventually wear out and need to be replaced.

Starting with the radiator, we see them coming into the shop with leaks or clogged with deposits. Depending on the damage, we will clean, repair or replace. We also see radiator pressure caps that can no longer hold the proper pressure. We recommend replacing pressure caps when you change your coolant to avoid this problem.

We see leaky water pumps and hoses in Parker that need to be replaced, too. There's also a part called the thermostat that opens and closes to regulate the flow of coolant. Sometimes they stick open or closed and the cooling system won't work properly.

Engine damage from overheating can be very expensive to fix so it's important to maintain your cooling system properly with scheduled coolant replacement and periodic inspections of the cooling system. Certainly come in if you suspect a leak and have us take a look.

Cooling system failure is the most common mechanical failure. The results can range from inconvenient to extremely expensive. You can head off most cooling system problems with regular coolant replacement and cooling system inspections. If you see green, amber or yellow fluid under your vehicle, bring it in for an inspection. At Keller's Pro Auto & Diesel in Parker, we install quality NAPA replacement parts. Give us a call at 303.840.7500 and let us help keep you safely and economically on the road.