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You may have wires that cross each other temporarily causing either a short circuit or a higher current level than normally would occur. These problems are extremely difficult to diagnose, due to the fact that the problem is there only for a short duration of time.
Hi there: You will have to pinpoint what the engine is missing... Spark / Fuel / Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
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In most cases there are just 2 things that cause a no start (this assumes the battery is good and the engine cranks over but won't fire off). 1st check to make sure you have fuel pressure, the easiest thing to do here is buy a can of spray starting fluid, pull the air intake hose off to the engine and spray the fluid in while you or a helper cranks the engine, if it starts and dies then you have a fuel pressure problem or no injector function. The fuel pump in this car like all modern cars with fuel injections is located inside the gas tank, the gas tank must be removed from the car to replace the pump. The next possible thing that causes a no start is a fault in the electronically controlled engine, this can be no fuel be delivered by the fuel injectors ( injectors are not signaled to open and spray fuel into the engine cylinders) or no spark or both, to determine the cause of this condition it is necessary that you have the systems computer (called the PCM) scanned for fault codes, this is referred to as a "OBD2" fault code scan, and is done either with an electronic tool called a OBD2 code reader or a full system scanner that has many other functions beyond reading the codes. If you have determined that the engine has no spark or other problem not related to fuel delivery/pressure issues then it is best left to a shop with the correct diagnostic tools to find, diagnose and repair the problems found.
It sounds like you computer system has gone into "Theft Protect Mode". There is most likely a problem with your security system and the computer "thinks" that the vehicle is being stolen. This can be due to the wrong key being used, or it could be a bad ignition switch or theft module. I would recommend having it diagnosed professionally. It would be very difficult to diagnose the problem without the required computer diagnostic equipment. If any of the parts of the security system are defective, the computer will have to be reprogrammed when they are replaced.
I would, however try a different key in the ignition if you have more than one - before having it towed to a repair facility. If another key works, you will only need to get a replacement key and have it programmed for your car.
remove the air inlet hose to expose the throttle body, open the flap(simulating wide open throttle) spray carb n choke cleaner in to the engine if the engine start u have a fuel problem, like fuel pump or no injector pulse. if the car still doesnot start then u have a ignition problem, cranksensor or cam sensor etc... they should set a code
Two things to check for. Spark and fuel spay some fuel injector cleaner directly into the intake and if it want to start and shuts off you have a fuel delivery problem, probably a fuel pump or relay. If nothing happens check the spark . If you have no tools the old fashioned way of using a philips screw driver and attaching it to a plug wire and then putting it close to the block while it is turning over. Insulate yourself first. If you have no spark the usual reason on a Chrysler is the crank sensor, but it should be diagnosed before throwing parts at it.