| Hi, I have done it now. I am going to take my heater out and test it for leaks like this: drain fluid, put it in a bucket of water, block one end of, put a compressor hose into the other end and pressurize it to about 14 psi then watch for the bubbles. My question is do i set the temp gauge to hot before i take it out of the car so the valve is open would it stay open? and would this also show a valve leak? |