Describe a scenario where you responded to a dissatisfied customer and successfully resolved their issue.

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Accepted Answer

To find coolant consumption without visible leaks, check for internal leaks, monitor levels, and inspect components.

1. Check for internal leaks: Inspect the engine for signs of coolant mixing with oil, which can indicate a blown head gasket.
2. Monitor coolant levels: Conduct a test drive and monitor the coolant reservoir before and after to measure any drop in levels.
3. Pressure test the cooling system: Use a pressure tester to identify any hidden leaks in hoses, radiator, or engine components.
4. Inspect the heater core: A leaking heater core can cause coolant loss without visible external leaks; check for wet carpets inside the vehicle.
5. Look for signs of evaporation: In some cases, coolant may evaporate due to high temperatures; check for residue around the cap.

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