OEM 2006 Dodge Ram 3500 Radiator Cap

2006 Dodge Ram 3500 Radiator Cap Parts and Q&A

• Q: How to Service and Repair a Radiator Cap on 2006 Dodge Ram 3500?

  A: To take care of the radiator cap, use only mild soap and water, because strong solvents might ruin the seal. At eye level with the cap right side up, check that the vent valve on the bottom is closed and that pulling it slightly downward will open it. If the rubber gasket expanded and makes it impossible to open the vent valve, change the cap. After that, flip the cap upside down, close to your eyes; if you can see a bit of light between the valve and gasket, take off the cap and use a new one. The new cap ought to be designed for the coolant system and contain both a closed diaphragm spring and a rubber gasket that attaches tightly to the top of the filler neck on the radiator.