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.
Problems for specific Chrysler Concorde years:
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Most reported 1994 Chrysler Concorde problems
The fuel level sensors can wear out and cause erratic or inaccurate fuel gauge readings.
A defective fuel pump check valve (which maintains fuel pressure in the system when the vehicle is not running) may lead to long cranking times or hard starting (sometimes with stalling). The fuel pump should be replaced. However, if these symptoms are accompanied by Check Engine Light illumination, there may be a problem with the engine coolant temperature (ECT) sensor.