My mechanic said:
1. Refill coolant gas, see if it lasts. Don't last means there's a leak.
2. Disassemble the whole thing. Takes 1-2 days. He'll patch and need to test again.
3. Some times, takes multiple times to identify the leak. Even the house air-cond unit also may take many rounds of checking if the leak is small and hard to identify or there may be multiple places the leak occurs.

This post has been edited by thesoothsayer: Jun 11 2024, 02:47 PM