The thermostat may fail to close completely, causing the Check Engine Light to illuminate. This problem will prevent the engine from reaching normal operating temperature; a new thermostat should be installed.Google+
Car Problem Reports
Dodge Charger Check Engine Light Due to Failed Thermostat
Dodge Charger Problem
Engines Affected: 2.7L V6, 3.5L V6, 5.7L V8 HEMI
Average Mileage: 92,065 mi (50,000 mi - 170,000 mi)
Visitor, 2008 Dodge Charger, 2.7L V6, 143,000 mi
I have anti-freeze residue around thermostat housing and my engine light comes on. The car goes through its info check and the engine light remains illuminated.
Visitor, 2010 Dodge Charger, 3.5L V6, 70,000 mi
I have the exact same issue. My thermostat only reaches a quarter of the way during high way driving and semi-normal during stop and go traffic.
Visitor, 2007 Dodge Charger, 2.7L V6, 88,000 mi
heat work fine till i would stop at light then would run could also took longer in the morning to heat up 2day later check enginer light cam on (check under hood low anti freez and thermostat
driving lose of heat guage drops off to cold and the check engine comes on
I recently had my thermostat housing repaired late last year. Could this be the problem with the check engine light coming on? The engine idles rough and is substantially rocking the car more than normal. Low power and seems the car is about to die, but never does.
Visitor, 2009 Dodge Charger, 2.7L V6, 97,000 mi
There's coolant around thermostat box low coolant even after I put coolant in check engine light coming on but goes off car take long time to warm up
Visitor, 2007 Dodge Charger, 3.5L V6, 87,000 mi
Same problem, check engine light because of the thermostat no closing properly,
Visitor, 2010 Dodge Charger, 3.5L V6, 61,788 mi
The thermostat does not move to half and it takes a while to get warm
Visitor, 2007 Dodge Charger, 2.7L V6
will not get warm while in park or in stop and go traffic but if i get on the highway heat will come on and work til i stop