2005 Dodge Neon starts runs for a little bit and then dies battery light in on won't start after.
Originally had a idle problem revving up to 5 grand then fix the problem with the battery light came on then on 423 and now one night it just died and couldn't get it to start battery was dead charged it went to run it again it started shipping down to second gear it's causing a lot of questions I'm thinking ultimate
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Could be a bad battery but I suspect your battery cable is either loose or corroded or dirty. Before you pull the battery disconnect your battery cables and clean them both ends and when you put them back on make sure you have good connections and tighten good.If that does not work pull your battery and get it tested at a battery out let . they should do that for free.
Change the temperature sending unit/temp sensor. When starting, the sensor will tell the computer to put the engine in cold start mode to give a bit more fuel and raise the idle a little so it WILL start and keep running without ever touching the throttle. Once warm-up is completed, this sensor will tell the computer to stop the cold start mode and go to normal run mode. THAT is your only problem.
Not trying to highjack your post. I just bought a 98 neon sport, manual sohc 2.0. Im having the exact same issue i think, car will run for a while then tac drops to zero and it dies, 5-40 minutes later i can restart but i usuall only make it a few blocks and it dies again, wait again and it will restart. Did you solve this problem with your neon and if not can anyone give me more places continue to diagnose. It has new cam and crank sensors, fresh plugs, wires and coil, new battery. I got the car cheap, thinking of fuel savings but i dont want it to became a parts money pit.
I believe you should just set the idle higher at the throttle body or MAF so it gets enough air and fuel to keep running. Those butterflies have to be cracked open a little to start with so it's getting enough air to run without you having to keep your foot on the throttle pedal.
The alternator is more than likely bad. If you jump start all the time and the car dies quickly it is the alternator, if you jump start all the time and it runs until shut off, but will not restart it is the battery.