Radiator Repair & Cooling System Service in San Antonio, TX | Sergeant Clutch


Keep your engine running cool with expert radiator service from Sergeant Clutch in San Antonio! Your vehicle’s radiator and cooling system play a critical role in maintaining proper engine temperature and overall performance. The radiator helps dissipate the heat generated by the engine through the coolant, preventing overheating and costly engine damage.

Cooling System Services We Offer:

  • Radiator Diagnostics & Repair
  • Radiator Replacement
  • Cooling System Flush & Fill
  • Thermostat Testing & Replacement
  • Water Pump Inspection & Replacement
  • Radiator Cap, Belts & Hose Replacement
  • Cooling Fan Repair
  • Pressure Tests & Leak Detection

Our certified mechanics are trained to diagnose and repair all components of your vehicle's cooling system—on both domestic and foreign cars and trucks. 

Why Radiator Maintenance Matters: Over time, coolant breaks down and loses its ability to protect the engine. Deposits, rust, and scale can clog the radiator and reduce efficiency. A regular radiator flush helps prevent overheating, corrosion, and component failure—keeping your vehicle safe and reliable, especially in San Antonio’s hot climate.

Pro Tip: Follow your vehicle manufacturer’s recommended coolant flush intervals to prevent problems before they start.

Signs of Radiator or Cooling System Issues:

  • Engine Overheating
  • Low Coolant Levels
  • Leaking Coolant
  • Steam from Under the Hood
  • Dashboard Temperature Warning Light
  • Sweet Smell from the Engine Bay

If you notice any of these symptoms, don’t wait. Bring your vehicle into Sergeant Clutch Certified Transmission & Engine Repair Shop for a professional Radiator & Cooling System Inspection.


Your vehicle’s transmission is what makes forward and reverse motion possible. It’s one of the most complex and essential systems in your car — and without proper transmission maintenance, it can lead to costly breakdowns. That’s where Sergeant Clutch, the transmission expert in San Antonio, TX, comes in.

We specialize in transmission rebuilds, using state-of-the-art diagnostic tools and quality parts to keep your transmission running smoothly. Whether you’re dealing with leaking transmission fluid, slipping gears, or warning signs of transmission failure, our certified technicians are here to help with fast, honest, and affordable transmission rebuild service.

Transmission Rebuild Financing Options Available - Understanding that unexpected auto repairs can strain your budget, Sergeant Clutch offers several payment plans and financing options:

  • Snap Finance
  • Easy Pay Finance
  • Synchrony Finance
  • Apply Now!

Does Your Transmission Need Service or a Rebuild? A complete transmission failure can leave your vehicle undrivable and result in a high repair bill. To avoid that, it’s important to understand the early signs of transmission trouble. Here are two common indicators every driver should watch for:

Check the Transmission Fluid - Regularly inspecting your transmission fluid can help you catch problems early. Healthy fluid should be reddish, clear, and have a slightly sweet smell. If it’s brown, thick, or has a burnt odor, it’s time for a transmission change?

Also check the transmission fluid level using your vehicle’s dipstick. Low levels often indicate a leak — transmission fluid doesn’t burn off like motor oil. Look for spots under your vehicle or signs of fluid around the transmission housing.

Poor Transmission Shifting or Slipping Gears - Your car should shift gears smoothly and without hesitation. If you experience slipping, delays, or jerky transitions, especially when shifting from Park to Drive or while accelerating, your transmission may need attention. Manual and automatic transmissions show symptoms differently, but both require immediate inspection when performance drops.

Why Choose Sergeant Clutch for Transmission Rebuild?
* Over 22 years serving San Antonio drivers
* Specializing in automatic & manual transmission rebuilds
* Advanced transmission diagnostics to pinpoint issues quickly
* Transparent pricing and financing & payment plans
* Fast, friendly service from a family-owned shop

Book Your Transmission Service Today - Don’t wait for a small issue to become a major transmission repair. Whether it’s a simple transmission fluid change or a complete rebuild, Sergeant Clutch has the experience and tools to get you back on the road with confidence.

Call now or schedule your appointment online for trusted transmission repair in San Antonio, TX.