Losing coolant but can’t see where it’s going? A coolant leak can cause engine overheating and expensive repairs if left unchecked. Here are a few simple ways to find the problem.

Signs You May Have a Coolant Leak

• Coolant level keeps dropping
• Engine temperature is higher than normal
• Sweet smell from the engine bay
• Colored liquid under the vehicle
• Steam coming from under the hood

Check for Visible Leaks

When the engine is cool, look around:

• Radiator
• Coolant hoses
• Water pump
• Coolant reservoir

Look for wet spots, stains, or dried coolant residue.

Pressure Test the Cooling System

Small leaks are often hard to see.

A cooling system pressure tester helps you pressurize the system and find hidden leaks quickly. If the pressure drops, coolant is escaping somewhere in the system.

Don’t Forget the Water Pump

A failing water pump is a common cause of coolant loss.

Check for coolant stains or moisture around the pump area.

Check for Internal Leaks

If you can’t find any external leak, watch for:

• White smoke from the exhaust
• Milky engine oil
• Constant coolant loss

These may be signs of a head gasket problem.

Final Thoughts

Finding a coolant leak early can save time and money. Start with a visual inspection, then use a pressure tester if needed. The sooner you locate the leak, the less chance of engine damage.