MTKirk
Full Access Member
Hey all, like the title states I need a part number for a 7 psi radiator cap.
I have a problem with my block heater building up too much pressure on the 13 psi cap. I have two 13 psi caps and they are both letting the pressure go over 20psi when it gets very cold. The higher pressure pushes out a little coolant from the lower rad hose to radiator connection. At operating temp I have no leak, nor did I this summer when the truck got very hot towing. My theory is, the cold makes the spring too stiff to let coolant into the overflow tank. When the truck warms up the spring functions normally and all is well. Sooo I'm thinking I'll put on a 7 psi cap in winter.
Thanks, and Happy Holidays!
I have a problem with my block heater building up too much pressure on the 13 psi cap. I have two 13 psi caps and they are both letting the pressure go over 20psi when it gets very cold. The higher pressure pushes out a little coolant from the lower rad hose to radiator connection. At operating temp I have no leak, nor did I this summer when the truck got very hot towing. My theory is, the cold makes the spring too stiff to let coolant into the overflow tank. When the truck warms up the spring functions normally and all is well. Sooo I'm thinking I'll put on a 7 psi cap in winter.
Thanks, and Happy Holidays!