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So when i first drive my car the car idols weird when i am coasting before a stop. At night the dash lights will dim and the blower will slow down for a second as the idol drops. It stops doing this after driving for about 15 min. Could it be a bad idol position sensor? I changed it about a year ago,but it's an electric part and who knows how long they will last these days.
Load test the battery and clean the terminals real good. You should use a genuine mopar sensor from the dealer, aftermarkets tend to be hit and miss.......
Check your voltage on the gauge when you come to a stop and see if it drops. If it does it could be a alternator, or a battery temp sensor under the battery.