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P2181 ECM detected coolant temperature has changed too slow or too rapidly.

Car: Dodge, Charger, 2006, 5.7L     -    Back to Fix-It    -    Dodge Repair Manuals

Q.What exactly causes this problem and how serious is the issue? The vehicle has been running low on coolant and the heater takes a long time to kick in.

I already checked/done: Checked the coolant level and hoses for leakage but that's it.

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