npe3484
Registered User
I put a coolant system pressure tester on my truck today and pumped it up to 13 psi. The needle stayed steady at first but then slowly began dropping. I could also hear a very faint hissing sound like there was a leak in the system. It just got done raining here so I couldn't get underneath to find the source of the leak, but I did see that it was dripping off the back of the engine cradle.
Any thoughts as to where it's leaking from? I'm thinking head gasket maybe?
Any thoughts as to where it's leaking from? I'm thinking head gasket maybe?