Empowering You to Fix a Radiator Cap That's Leaking Pressure

If the system will not hold vaccum then you have a internal seal problem (Headgasket failure). ... The cooling system can still hold pressure. But ... loose belt, loose hose clamp, strainer lid not tight.... If you still have the old cap and pressure tester, you can test the cap and see where ... You must change your radiator cap if it broken, otherwise It won't hold the pressure and more coolant will overflow into overflow bottle and ... Having a higher pressure radiator cap won't make your system run cooler... ... My original cap doesnt hold pressure, just lets water out when ... car coolant reservoirs This is a coolant reservoir. This type won't have a screw-on cap because it's not designed to hold pressure. The coolant ... Before you sign off on the radiator cap being the problem, check to make sure that your overflow tube isn't clogged. If it is, the pressure buildup will force ... What I do a few times a week is open my radiator cap with the engine running, top it off with premix 50/50, and let it run. Initially, I had ... To make a no-pressure cap, you want to remove the inner seal, and fully tighten the cap so the outer seal keeps the coolant in the radiator and the overflow ... From a cooling perspective it won't make much difference, plus the system only sees boiling temperature* when there is an overheating problem. It can be confirmed with a simple chemical test for CO2 in the coolant. Left unfixed, you can rupture your radiator >> blow out all your coolant ...