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Internal Leaks

Visit 12th Street Auto Care Center in Sioux Falls, SD if your vehicle has internal fluid leaks. Our ASE-certified mechanics are happy to conduct any test for any of your car, truck, van or SUV's auto systems. Bring your vehicle to our auto repair shop today for all your auto maintenance, inspection, repair or replacement needs.

Testing for Internal Antifreeze Leaks

Internal coolant leaks are much harder to find than external coolant leaks. For internal leaks, we can use a combustion leak tester, or block tester, to check if coolant is leaking inside the engine cooling system, which may include the engine.

If an engine’s gasket goes bad or breaks, since it is supposed to seal and keep things either in or out, antifreeze could leak into a combustion chamber. White smoke leaving your exhaust could be a sign that your vehicle is internally leaking antifreeze, and it is finding its way into one of your engine’s combustion chambers and getting burned off as fuel.

Sometimes, overheating cannot be explained by a leak, in which case, your coolant might need replacing. To determine what is leaking, call 12th Street Auto Care Center today.

Napa Service Assistant

You don’t have to be an expert to know that preventive maintenance is the best way to make sure your vehicle is running properly. Use our interactive vehicle tool to learn about the maintenance and services your NAPA AutoCare Center can provide.

Napa Interactive Maintenance Tool