End Radiator Pressure Headaches The Ultimate Guide to Fixing a Cap That Won't Seal

Then, you work on things and lean n the hose shoving it into the bolt head. Since that is outside the cap, a pressure test won't find it as a ... Raising the pressure also raises the boiling point.However at that pressure you could be taxing all your seals in the cooling system. I keep ... 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 ... Header tank cap or radiator cap is faulty ... The car coolant header tank is equipped with a pressure release valve in the filler cap, intended to release coolant ... There is no valve in the radiator cap that permits only gases or vapors to pass and not liquids. If the cap is not sealing, there is a pathway ... I had the same problem as you described.Found that the distance from cap to the sealing rubber ( at end of cap ) wasn't as long as it should ... Don't the radiator caps hold the pressure? Maybe the cap is loose ... My problem is that I can drive my truck all day and it won't accumulate ... Replacing a bad radiator cap is a simple process, but the best and safest way to replace or repair it is to head to a professional service center like the one ... You may see bubbles rising in the pressure tank. There won't be gases trapped in the radiator. . With a developing fire ring leak,after driving awhile and while ... Before you replace the rad make sure that it is leaking and not the cap. I have had many aftermarket caps leak. The easiest fix for a new cap is ...