Check Engine Light Due to Failed Thermostat on Dodge Charger

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.

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Average mileage: 101,354 (41,000–170,000)
Engines affected: 2.7L V6, 3.5L V6, 5.7L V8 HEMI
6 model years affected: 2006, 2007, 2008, 2009, more2010, 2012
40 people reported this problem
17 people shared problem details
2010 Dodge Charger- 3.5L V6129,510
Check engine light came on, I took it to get checked out and he said that my thermostat is stuck open. Can I still drive it or not until I get it fixed
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
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.
2010 Dodge Charger- 3.5L V670,000
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.
2008 Dodge Charger- 2.7L V6143,000
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.
2007 Dodge Charger- 2.7L V688,000
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
2007 Dodge Charger- 3.5L V687,000
Same problem, check engine light because of the thermostat no closing properly,
2009 Dodge Charger- 2.7L V697,000
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
driving lose of heat guage drops off to cold and the check engine comes on
2010 Dodge Charger- 3.5L V661,788
The thermostat does not move to half and it takes a while to get warm
2012 Dodge Charger- 3.5L V686,526
Check engine light came had code read. They state its P0128 thermostat staying open... read several reports of this on Mopar site, surprised there is no recall!!!
2008 Dodge Charger- 3.5L V6
Check engine light came on. Code 2181. Coolant is fine and no weird noises from car.
2006 Dodge Charger- 3.5L V6161,000
The thermostat was replaced but the temperature still does not go high enough. I believe the thermostat is not closing properly.
2009 Dodge Charger- 3.5L V6155,000
Thermostat is staying open. Code
2008 Dodge Charger- 5.7L V8 HEMI
thermostat stuck open under a 100,000 miles
2009 Dodge Charger- 2.7L V661,574
My car wouldn't get warm, then random days the heat would finally rise. The check engine light came on, and I was quoted for fixing the thermostat and the coolant bleeder valve was leaking.
2010 Dodge Charger- 3.5L V6115,000
Check engine light on, thermostat must be stuck open because car running cooler than it should
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