Repair Lane

Coolant Leak Diagnostic

We trace exactly where your coolant is going — visible drips or hidden internal leaks — so you only fix what's actually leaking.

Difficulty: easy~0.71 hrsAbout an hour
Estimated total
$80–175
Parts$0
Labor$80–175
Labor time0.71 hrs

Diagnostic pricing covers testing and identification of the problem. Repair parts and labor are quoted separately.

Repair costs are not included unless separately selected.

Get matched with a shop
What's involved

What this repair actually is.

A technician inspects the radiator, hoses, water pump, reservoir, and heater core, and uses pressure and dye testing when needed to find the exact source of a coolant leak. Coolant can leak from a dozen different places, and some leaks burn off inside the engine without ever leaving a puddle, so pinpointing the source first avoids replacing the wrong part.

Symptoms

How you can tell.

  • Green, orange, or pink puddles under the car
  • Coolant level keeps dropping between top-offs
  • Sweet smell outside or inside the car
  • White smoke from the exhaust
  • Oily film on the inside of the windshield
  • Low coolant light comes on repeatedly
If you delay

A small leak eventually empties the system and causes overheating, which can destroy the head gasket or the engine itself.

Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.
Related

Often done together.