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Car: 2008 Chrysler 300C SRT Design
Join Date: Apr 2013
Location: Nashport, Ohio
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- Low coolant level
- Faulty Engine Coolant Temperature Sensor
- Stuck or leaking thermostat
- Engine Coolant Temperature Sensor harness is open or shorted
- Engine Coolant Temperature Sensor circuit poor electrical connection
Found this online, Obviously first check the coolant level.
Next I would check your temp when fully warmed up. If you hold down the Compass and Music buttons together for a few seconds it will load up a secret menu screen. There is a screen that will give a digital reading of Water temp. Give us that temp when operating the car normally,
Too Hot, the thermostat may be stuck shut/faulty
Too Cold, the thermostat may be stuck open/faulty
Either of which would require a replacement. BUT the sensor may also be faulty, I would think this would give an OBVIOUS wrong reading, like 100 degrees when driving around.
As far as the last two options, I would not be able to really help there. Normal operating temp on a stock 5.7 is around 200-210 F, I would think the 6.1 is around that as well.
Unless of course you have a Programmer such as a Diablosport and have moved the fan settings without changing the thermostat?
Are there any mods you have on your car?
Last edited by CNISTER; 03-04-2014 at 09:18 AM.