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Corrosion in electrical connections causes some bad behaviors. Usually there is a critical temp sensor that provides block temp information to the ECU. It usually has a two or three wire connection to the sensor. And a difficult to remove connector. My 20yr old (other make) gave me a bout of teriable starting when cold. I found this "special sensor" (some people say the sensor needs to be changed. I found that cleaning to bright metal provided the needed almost like new start without needing to replace the sensor. On mine there is a second "simple" temp sensor one wire to the dashboard temp display. Hope this helps.
Sounds like the body control module(BCM) has died. Do a relearn. Turn the ignition on (don't try to start) for ten minutes, turn it off for 30 seconds. Do this three times( have a battery charger on it). After the third time, try to start. If it does start, then have the codes read. It could be wiring, bad communication from computers. ( a U code) Or the BCM is dead..
Probably loses either gas or spark. So check fuel pressure when it won't start, and check for spark on a plug wire. If fuel pressure is low, probably a bad pump. If no spark, diagnose the ignition system: coils, ignition coil control module (ICM), crank position sensor, etc.
An easy way to see if you lost gas, is to spray carb cleaner or starting fluid into the air intake while cranking engine. If it rumbles and tries to start, you know it is a fueling problem.
BCM on the 2001 durango was also known as the CTM but regardless it is located on driver side kick panel where your left foot would be if you are driving. there is two screws to remove panel. its a black box with three plug ins.
i had the same problem in a dodge ram pick up. ended up being the coil. when the coil got hot my truck would die or not start again until the engine had cooled down. replaced the coil, and whalaaaaah. no more trouble. good luck!!!!!!!!!!!!!!
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