What is an acceptable rate of pressure drop when testing the cooling system? |
Subject: What is an acceptable rate of pressure drop when testing the cooling system? by Josh on 2010/5/19 4:33:17 I pressurized the cooling system in my 91 with a coolant system tester. The system dropped from 19 PSI to 12 PSI in one hour. There are no visible leaks. Should I be worried about an internal leak? |