RAM 1500 Van V8-5.9L VIN Z LDC (2001)
Radiator Cap: Service and Repair
CLEANING
Clean radiator pressure cap using a mild soap and water mixture. DO NOT use any chemicals stronger than mild soap, damage to the seal can occur.
INSPECTION
Hold cap at eye level, right side up. The vent valve at bottom of cap should open. If rubber gasket has swollen and prevents vent valve from opening,
replace cap.
Hold cap at eye level, upside down. If any light can be seen between vent valve and rubber gasket, replace cap. Do not use a replacement cap that has
a spring to hold vent shut. A replacement cap must be the type designed for a coolant reserve/overflow system with a completely sealed diaphragm
spring and a rubber gasket. This gasket is used to seal to radiator filler neck top surface. Use of proper cap will allow coolant return to radiator.