Cooling System Service
Stop on by and say hi, you'll be glad you did!

Automotive Cooling System Service & Maintenance Kingwood, TX

Protect your engine and keep your vehicle running at the right temperature with professional automotive cooling system service from Sullivan’s Truck, Auto & Collision in Kingwood, TX. Our ASE-certified technicians provide complete automotive cooling system maintenance and repair services from sedans to RVs.

Your cooling system works hard to prevent your engine from overheating, even under extreme Texas heat. At Sullivan’s, we handle everything from radiator flush services to advanced automotive cooling system service, ensuring your personal or fleet of vehicles stays reliable and efficient. Whether you need to fix a coolant leak, replace a water pump, or perform preventive automotive cooling system service, we’ve got the expertise and tools to get the job done right the first time.

Be sure to stop by, call us at 281-359-3598, or schedule your radiator service or coolant leak repair online today.

Automotive Cooling System Service & Maintenance in Kingwood, TX
Car & Truck Cooling System Service & Maintenance in Kingwood, TX

Complete Cooling System Services

Your vehicle’s cooling system is made up of several components that must work together to keep engine temperatures in check. Our Kingwood team provides comprehensive services to address every part of the system, including:

  • Radiator repair and replacement
  • Radiator flush and coolant replacement
  • Water pump replacement
  • Thermostat replacement
  • Hose inspection and replacement
  • Coolant leak detection and repair
  • Overflow tank service
  • Cooling fan diagnostics and repair

Expert Tip

A radiator flush every 30,000 miles or as recommended by your manufacturer helps remove harmful rust, debris, and old coolant that can damage your system.

Nicholas Stander
4 hours ago
This is the place to go when you are looking for knowledgeable people at fair prices. They do all of our auto maintenance, oil changes, tires, etc.
Response from the owner:Thank you for your loyalty! Our Team takes great pride in providing superior service to our customers and top notch quality repairs to get you and your family back on the road safely. Happy Motoring!
Joe and the folks at Sullivan’s Truck and Auto consistently provide excellent service, considerate of the customer. I am grateful.
Candice Prince
3 days ago
I would definitely recommend Sullivan‘s for collision repair. They have great customer service and are good at timely communication. They work well coordinating with the insurance company and give a guarantee to their work. Thanks Andrew for all help! (He even helped me move my car seats from one vehicle to another)
Response from the owner:Hi Candice-- We are so happy that you were pleased with the repair of your vehicle. We know how stressful and frustrating it can be at times and are happy to hear that Andrew made it as easy and seamless as possible for you. Thank you for choosing Team Sully and we are always here for when you need us!
Pat Maher
5 days ago
We wouldn’t go anywhere else, recommend them highly
Response from the owner:Hey Pat! Thank you so much for your kind words. It means a lot to us that you trust us with your vehicle and to get you back safely on the roads. We appreciate you.
I had excellent service from the time I called to schedule to the moment I drove away. Joe, the service advisor was 100% professional, knowledgeable and friendly. Highly recommend this business for automotive needs!
Response from the owner:Hey Karen! We appreciate you too!! Thank you for choosing Sullivan's- we will always be here for ya when you need us! 🙂
Jacob Rivers
5 days ago
After a minor incident, our Cadillac Escalade needed an alignment. We took it to a body shop first. When we picked it up, it was driving terribly and felt almost uncontrollable. They realigned it, same issue.

Next stop was Cadillac. We explained everything to the service manager, they aligned it again and told us it was back in spec. I picked it up… and it still drove awful.

I bumped into Michael Sullivan and we talked about what was going on. So we brought it to Sullivan’s Truck, Auto & Collision Repair.

From start to finish, the experience was completely different. Great customer service. Clear communication. They test drove the vehicle themselves and confirmed what we were feeling. When we picked it up, they walked through the alignment printout with us in detail — something no one else had done.

The Escalade now drives exactly like it should. They even had it cleaned and ready to go.

Can’t say enough good things about the team at Sullivan’s. Professional, honest, and they actually fix the problem. Highly recommend.
Response from the owner:Hey Jacob --This means a lot to us and our team, thank you for your kind words! We know how frustrating it is to be told everything is “fine” when your vehicle clearly doesn’t feel fine. We’re so happy we could test drive it to feel what you were feeling and walk you through everything, so you felt confident getting back on the road safely. If you ever need anything at all, we’re here for ya!
Austin Sullivan
7 days ago
Pat was amazing!! Very helpful with the whole process and communicated almost daily with me about when it will be done and what work was being done! Over 10/10
Response from the owner:Hey Austin!! Thanks so much for speaking so highly of our Team. It means the world to us that you trust us with your vehicle when you need us the most. Thanks for choosing Sullivan's!
Glen Corder
2 weeks ago
Our first visit to Sullivans was today and we enjoyed the experience!
Thx Nik Helms
Response from the owner:Mr. Corder- thank you for your kind words and for leaving us a 5 star review! We are so happy to hear that Nik exceeded your expectations. Thank you for choosing Sullivan’s!
Mike Ward
2 weeks ago
Unfortunately, I was in an accident and my car was towed to Sullivan’s. I’ve lived in Kingwood for over fifteen years and have driven past their shop hundreds of times. It always looked busy, and I remember thinking, they must be doing something right.

From the moment I walked into the lobby, I was greeted with genuine smiles. The person I had the pleasure of working with was Pat. He was respectful of my time, listened carefully to my questions and concerns, and went the extra mile to make sure everything was handled correctly.

Even though my car was totaled, Pat was a perfect example of excellence and professionalism. If you ever need to take your vehicle to Sullivan’s Auto Body Shop, you’ll be in great hands with Pat and the rest of the team.
Joel Pousson
2 weeks ago
Wow! Had some minor work I needed done so I went to Sullivan's.. I had gotten a part online so I wasn't sure of my reception... William Scott could not have been more accommodating and helpful and than didn't even charge for the work done!! Will definitely return for maintenance and repairs on my two vehicles in the future!!

Preventive Cooling System Maintenance

Regular automotive cooling system maintenance is key to avoiding overheating and expensive engine repairs. At Sullivan’s, we offer scheduled radiator service and system checks to keep your cooling system performing at its best.

Our preventive maintenance includes checking coolant levels, testing for leaks, inspecting hoses and belts, and performing radiator flushes as needed.

Expert Tip

Always use the coolant type recommended by your vehicle manufacturer — mixing types can cause sludge buildup and reduce cooling efficiency.

Why Choose Sullivan’s for Cooling System Service

Since 1985, Sullivan’s has been the trusted name for auto repair in Kingwood. When it comes to automotive cooling system repair and radiator service, our customers rely on us for:

  • Over 40 years of experience in automotive maintenance and repair
  • ASE-certified technicians trained on all cooling system types
  • Accurate diagnostics and honest repair recommendations
  • Quality parts and fluids for long-lasting results
  • Lifetime workmanship warranty on every repair

We’re dedicated to helping you maintain your vehicle’s performance while preventing costly breakdowns.

Signs You Need Cooling System Maintenance or Repair

Signs Your Cooling System Needs Service

A failing cooling system can cause severe engine damage if ignored. Here are some warning signs that it’s time for automotive cooling system service:

  • Engine temperature gauge running hot
  • Coolant pooling under your vehicle
  • Low coolant levels with no visible leak
  • Sweet smell (antifreeze) inside or outside the car
  • Steam or overheating during drives
  • Warning lights on the dashboard

If you notice any of these signs, schedule automotive cooling system maintenance with Sullivan’s immediately to prevent costly repairs.

Expert Tip

See our Scheduled Preventative Maintenance page to keep every part of your vehicle in peak condition.

Schedule Your Cooling System Service in Kingwood Today

Whether you need a quick radiator flush, a coolant leak fixed, or a complete automotive cooling system repair, Sullivan’s Truck, Auto & Collision has you covered. We’ll ensure your vehicle stays cool and dependable, as a part of our in-depth automotive services.

Call 281-359-3598 now or request your appointment online to book your cooling system service with our certified experts.

Cooling System Service & Maintenance FAQs

How often should I flush my radiator?

Most manufacturers recommend every 30,000 miles or 2–3 years, but it depends on your vehicle and driving conditions.

What happens if I drive with low coolant?

Driving with low coolant can cause your engine to overheat, leading to severe damage and costly repairs.

Can you fix a coolant leak on the same day?

In many cases, yes. Depending on the source of the leak, repairs can often be completed within a day.

What type of coolant should I use?

Always use the coolant type specified in your owner’s manual to avoid compatibility issues.

Do you work on both cars and trucks?

Yes — we provide car cooling system repair and truck cooling system repair for all makes and models.