I recently over heated and discovered my coolant was very low. refilled and ran under load with no signs of a leak. I'm suspecting my radiator cap. Any thoughts?
Should we have some amount of coolant in the overflow tank (enough to fill the hose between the radiator cap and the tank and maybe 2 - 3 cups) or have nothing in the tank or hose, but be available to catch any overflow should it ever happen?
yes I do and it was empty. I refilled the tank and added fluid to the recovery tank as well. I ran the engine again with no signs of a leak , however the level in the recovery tank has now gone down.
It is a simple matter to use a pressure tester to check the cooling system and the pressure cap with a radiator pressure tester. This will take the guesswork out of the diagnosis.
We had an issue last month with a boat that had a similar problem. When the pressure tester was used a leak was found at the hot water heater.
