Re: Coolant leak at engine and mechanic recommendation
Reply #5 –
So most auto parts stores rent pressure testers, but I've never seen the correct adapter the size of the radiator cap. Its large. Easy work around is to remove the overflow hose off the radiator tank taking care not to damage radiator. Remove the adapter off the tester and adapt to fit onto overflow fitting. Remove the radiator cap and prop open the negative pressure check valve in the center of the cap. I personally use about 1/2 inch long tyrap cut off tail. It will seat under check valve nicely and stay in place till removed when finished. Now that you have the radiator cap defeated "open" and reinstalled you can pump the system up and release at will with the tester. Easy workaround.
Scott