Coolant System Repair Service in Plainfield, Illinois

Mechanic repairing coolant system of truck at TVA Repair

Your heavy-duty diesel truck’s coolant system has many complex elements, which include a radiator to dissipate heat, fans to ensure adequate airflow for radiator cooling, a thermostat valve that opens when the desired operating temperature is reached, and a water pump (or coolant pump) to circulate coolant through the engine, hoses and other components.

How does a coolant system work?

Coolant is driven by a water pump and picks up heat and transfers it to the radiator. In the most simple words, it absorbs and distributes heat from your truck’s engine. Coolant is also used to protect against freezing and boiling, corrosion and pitting of cylinder liners and the engine block. If a problem occurs in the process of dissipating the engine heat, then this is where you would begin to see equipment failure and engine issues, including diesel engines overheating and possibly complete engine failure. 

Why should you seek maintenance on your coolant system?

  • It keeps your vehicle running at a proper operating temperature
  • It prevents your engine from overheating

Regular coolant maintenance becomes even more important during the summer or in warmer climates when temperatures are high and there is less influence from the outside air to manage engine heat. 

Common coolant system concerns:

  • The thermostat is not working which prevents coolant from reaching the engine
  • A blown head gasket can cause a leak of coolant, which causes the operating temperature to shoot up quickly. You may be unaware of the smoke coming from your truck.
  • You have a worn-out radiator hose and the radiator cap can crack, which causes coolant to leak.
  • The water pump of your vehicle is leaking or has a defective impeller.
  • Your fan belt is cracked, broken, or loose and will not circulate coolant to the vehicle’s radiator

Having an issue with your coolant system can ruin the engine or the EGR cooler of your vehicle could lead to more serious repairs. 

How to tell if your coolant system is failing:

There are some fairly standard signs to watch for which are clear indicators of your coolant system needing service:

  • The coolant reservoir is low
  • Steam is coming from the radiator cap
  • There is a noticeable smell of coolant
  • The truck’s temperature gauge is running unusually high

Best practices for coolant system maintenance

There are a number of things that can help maintain the coolant systems and also extend the lifespan of your vehicle. 

  • Ensure that your cooling system is filled with coolant and that the freeze protection level is adequate
  • Use the coolant type that is already in the engine for top-ups
  • Check radiator fluid levels and concentration
  • Check the integrity of the radiator cap and look for leaks
  • Properly clean and flush the system when coolant is changed

If you do not know what type of coolant system your vehicle has, bring it into our shop and we will take care of it for you. We will provide you with exceptional service, let you know the right coolant to use, and ensure your vehicle is functioning with the right combination of coolant and water.

The level of maintenance our team has to provide will rely on the type of antifreeze used by your vehicle’s cooling system. Knowing this, our technicians can track the mileage benchmark for regular maintenance. If you want to be proactive, you can check on your coolant at any time. Even if you are visiting us for a different repair, we advise you to check your coolant at the same time in order to be safe.

Here are some services offered for coolant system:

  • Replacing gaskets, seals, and radiator caps that are worn down or cracked
  • Flushing out old coolant and replacing it with new
  • Changing out cracked and damaged hoses
  • Putting in new fan belts
  • Repairing the reservoir tank for leaks

For any type of coolant system repair, consider TVA Repair. Let our team of experts and advanced technology get you back on the road as soon as possible.


What Our Customers Have to Say

We are dedicated to providing the best heavy-duty truck repair services in Plainfield, IL for our customers.

Dumitru Julea

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"I recently brought my 2022 Freightliner Cascadia in for service. I'm very happy with the service I received from TVA Repair. If you're in Plainfield, IL I highly recommend this shop."

ADL Transport

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"Great repair shop, been coming here for the last 2 years. Fair prices, knowledgeable mechanics and always fixed in timly manner as anticipated. Recommend."

Radhoo INC Dispatch

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"Great shop to do maintenance on your units."


I think this company is the best on the road Rigth now. All is very good New truck , perfect service and very young professional team

Nicola Simone
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Elpidio is one of the best employees in TVA that I have encountered. He has been very helpful and caring for me as a driver. If you’re looking into coming to TVA this is your man. Thank you brother!

Yaisel Reinoso
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The best company for drivers and owners. Great people to work with, you are part of a family/team. I would recommend it to everybody. They have a truck repair service, very professional employees Alex is one of them! I reccomend to anyone that needs repairs done on the truck or trailer.

Mihail Placinta
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I have been a CDL-A driver with full endorsements for over 2 years. I found myself forced to job hop from a few companies based on unsafe equipment, promises unmet, and some accepted company cultures of driver complacency, poor hygiene and negative unhappy work force. I have found the opposite of those unfavorable conditions. This is the job I envisioned when I decided to get my CDL License and fulfill a life long desire to drive for a living. The staff are so polite and highly intelligent. They don't act like they care but it is clear they care very much about operations, driver relationships and hometime. I am very polite, professional and positive in my personality. That is my nature. I have found a company I am proud to be a part of. I never wonder what other drivers are being paid any longer. The pay, like the company structure itself is excellent.

Gale Fox
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