Problem: Dodge/Jeep: No A/C Over 50 MPH, Engine Runs Hot
This bulletin involves inspecting the primary thermostat housing for a resin material (debris) blocking the cylinder head coolant port.
Models: 2010 Journey, Avenger, Compass, Patriot, Caliber
A/C system may be inoperative above 50 mph, or the engine runs hot or possibly overheats. This condition could be caused by a resin material (debris) blocking the primary thermostat housing port. Removing this restriction will correct the issue.
1. Remove the primary thermostat from the thermostat housing.
2. Inspect thermostat housing port.
NOTE: Resin material (debris) could be completely or partially blocking the port.
3. Is any resin material (debris) stuck or blocking the housing port?
a. Yes – Proceed to Step 4.
b. No – Install the primary thermostat into the housing. Return vehicle to customer or vehicle inventory.
4. Remove resin material (debris) and reinstall the primary thermostat into the housing.
5. Top off the coolant.