Why Is My Car Leaking Coolant?
- Tyler Ellis
- Aug 7
- 2 min read
Why Your Car Might Be Leaking Coolant
If you notice bright green, orange, or pink fluid under your car, chances are it’s coolant. Many drivers ask, “Why is my car leaking coolant?”, and the cause can be as simple as a loose hose clamp or as serious as a failing radiator. Coolant leaks shouldn’t be ignored because they can quickly lead to overheating and major engine damage.
At Round Rock Auto Center, we locate and repair coolant leaks to keep engines running at the proper temperature.
Common Causes of Coolant Leaks
Coolant circulates through your engine, radiator, and heater system — which means leaks can happen in several places. The most common include:
Radiator leaks – Cracks, corrosion, or worn seams can cause coolant to drip or spray.
Hose problems – Old or brittle hoses can split, and loose clamps can allow leaks.
Water pump failure – When seals in the pump wear out, coolant leaks from the pump housing.
Blown head gasket – A serious issue where coolant leaks internally into the engine.
Heater core leaks – Can cause foggy windows inside the cabin and a sweet smell of coolant.
Reservoir tank cracks – Plastic tanks can split and leak under heat and pressure.
How to Tell If It’s Coolant
Not all leaks are coolant, so check these signs:
Color – Usually green, pink, or orange.
Smell – Sweet odor, different from oil or fuel.
Location – Often near the front of the car under the radiator or engine bay.
Overheating – If your temp gauge climbs, you may be losing coolant.
Why You Should Fix Coolant Leaks Quickly
Driving with low coolant can:
Cause overheating and severe engine damage.
Lead to costly repairs like warped cylinder heads.
Leave you stranded if the car overheats suddenly.
How We Repair Coolant Leaks at Round Rock Auto Center
When you bring your car to Round Rock Auto Center, we:
Pressure test the cooling system to find leaks.
Inspect hoses, radiator, water pump, and heater core.
Check for internal leaks such as a head gasket issue.
Repair or replace faulty components.
Refill with fresh coolant and test for proper operation.
Protect Your Engine from Overheating
If you’ve been wondering why your car is leaking coolant, don’t wait until it causes engine failure. Contact Round Rock Auto Center today for a full inspection and fast repair to keep your cooling system in top shape.
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