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.

RepairPal Verified
Average mileage: 100,038 (41,000–170,000)
Engines affected: 2.7L V6, 3.5L V6, 5.7L V8 HEMI
7 model years affected: 2006, 2007, 2008, 2009, more2010, 2011, 2012
51 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 20 of 22 problem details
2010 Dodge Charger - 3.5L V6 129,510 mi,
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
2008 Dodge Charger - 2.7L V6 64,000 mi,
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.
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
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.
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.
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
2007 Dodge Charger - 3.5L V6 87,000 mi,
Same problem, check engine light because of the thermostat no closing properly,
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
2010 Dodge Charger - 3.5L V6 61,788 mi,
The thermostat does not move to half and it takes a while to get warm
driving lose of heat guage drops off to cold and the check engine comes on
2012 Dodge Charger - 3.5L V6 86,526 mi,
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!!!
Check engine light came on. Code 2181. Coolant is fine and no weird noises from car.
Check engine light came on and said I need a thermostat
2008 Dodge Charger - 5.7L V8 HEMI
thermostat stuck open under a 100,000 miles
2009 Dodge Charger - 2.7L V6 61,574 mi,
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.
2006 Dodge Charger - 5.7L V8 HEMI
Hi yea my check engine light came on don't know what the problem is but it hasn't been on in a long time
3 thermostats in one year!
I have a 2009 dodge charger 2.7. Had the water pump replaced because it was leaking.In the process the guy who had the car working on it didn't replace the tensioner back right and it jumped off and bent the valves.That ducks I know. .Ok so now I had the valves replaced,new tensioner, and new head gaskets.Let me add the car was running find before all this happened only problem was water pump leakage.Did not drive or move the car since the water pump replacement.But anyway,now when you pour water into the coolant jug it goes directly into the engine.Not sure what is causing this problem.Do I need to replace the thermostat? ?,could that be causing this ?? I strongly believe the heads are not warped because the car was fine until it jumped time when the tensioner popped off. And that happened minutes after he was done with replacing the water pump.Any information will be a big help
2011 Dodge Charger - 3.5L V6 50,000 mi,
Code replaced new thermostat
2006 Dodge Charger - 3.5L V6 161,000 mi,
The thermostat was replaced but the temperature still does not go high enough. I believe the thermostat is not closing properly.