Radiator Cap Inspection
 Courtesy of CHRYSLER GROUP, LLC
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| 1 - Vent Valve |
| 2 - Lower O-Ring Seal |
| 3 - Main Spring |
| 4 - Upper O-Ring Seal |
The vent valve in the cap is normally closed.
If the O-ring seal is damaged, replace the cap.
A replacement cap must be the type designed for use on a pressurized coolant bottle.