Before refilling the coolant, make sure the air bleed valve is open. Follow the proper fill procedure—it will prevent problems with overheating, low heat output from the heater, and possible coolant bottle failure.
Problems for specific Chrysler Concorde years:
Car problem reports
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Most reported Chrysler Concorde problems
Debris and corrosion in the AC housing may cause the AC evaporator core to develop a refrigerant leak.
A worn AC belt idler pulley may cause the AC belt to roll over in the pulleys or come off completely.
Failure to use the correct automatic transmission fluid and follow the maintenance schedule can result in shifting problems.
When the car is accelerating, spark plug cables may cause intermittent misfires and popping sounds from the engine compartment.
On vehicles equipped with side airbags, placing articles under the seat can damage wiring. Loose, damaged, or dirty connectors under the seat are frequent causes for intermittent airbag lamp illumination.
Faulty pressure transducers (sensors) or the evaporator temperature sensor may cause the AC to stop functioning. The body control module (BCM) may lock up and create similar symptoms. Disconnect the battery for five seconds before resetting the BCM.
A defective vehicle speed sensor can cause problems with the cruise control and speedometer operation, as well as erratic shifting. The connectors on the sensors are also susceptible to corrosion, which will create similar symptoms. Any of these problems can cause Check Engine Light illumination.
The fuel level sensors can wear out and cause erratic or inaccurate fuel gauge readings.
Fatigued or broken wires to the output speed sensor can cause problems with the cruise control, erratic shifting, and speedometer operation. This may also cause Check Engine Light illumination.