Ultimate Radiator Cap Repair Guide Restoring Pressure and Efficiency

If the cap is faulty, it won't be able to release the right amount of pressure, so the reservoir will begin to overflow. The cap is designed that the excess pressure from the radiator is supposed to be bled into the overflow tank. From a cooling perspective it won't make much difference, plus the system only sees boiling temperature* when there is an overheating problem. 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 ... The rubber just won't hold it anymore. If it's older than 5, grab a tester or replace it. Once they fully loose pressure than you are in real ... ... won't be long until those OE radiator caps are gone as well. ... When the radiator cap can't hold 18 lbs. of pressure the radiator ... If you cap is leaking, it won't build as much pressure and the boiling point will be lower. If it were me, I would just replace the cap and see ... It's important to choose the right cap as the pressure will be individual to your system. ... Typically you won't need to replace a radiator cap ... Find the "REAL" Radiator cap, under the plastic beauty cover over the top of the radiator. With the system cool, remove the cap and make sure the radiator is ... Pressure Problems One of the most common issues with radiator caps is improper pressure regulation. If the cap doesn't maintain the right pressure within ...