03 chevy impala ls starts and then dies immediately
My impala starts and then dies immediately maybe a second or two after starting. It doesn't matter if the engine is warm or cold but does it more when it is warm. It has even once backfired back through the intake and smoke rolled from out of the hood. Most of the time, the car will start with no problem second try.
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Your car starts and dies due to the failing antitheft system. Your vehicle is not receiving the "fuel enable" signal that it needs to keep running. So the injectors get turned to off to prevent theft. You will need to diagnose which part of the antitheft system is failing. Or bypass the entire security system. This link will help you understand the problem, and depending on the year of your vehicle, possibly a good bypass solution.
A little shot of quick start, or WD-40 in to the throttle body intake when it won't start, will at least let you know if lack of fuel or spark is your culprit. If it fires up for a second or so after a spray, then it's fuel delivery related. Helps mechanic narrow down area of trouble.
starter pinion may be jammed hit on it with a block of wood when some else tries to start it...this will usually only work one time but it"ll prove that you have a bad starter solenoid. make sure also that you try nuetrla position when trying to start you might have a bad neutral saftey switch. you can also make up a jumper with aligator clips and hook one end up to the pos battery and the other to the 12v position of the start will key is on this way if it starts then youll know that its a wiring issue maybe ignition switch.
I have replaced the radiator in my 2003 Chevrolet Impala LS. The car started running hot and shut down. Took it to a radiator shop and found a crack in the radiator. I have replaced 2 thermostats in the car already. I noticed water running from under my car today and it seems it was coming back out of the overflow. I am stumped as to what is going on with this car.