Question about 2003 Chevrolet Impala
Once in a blue moon, like every 50 or so starts, the car fails to start. When checked the next few times, it finally starts.
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Posted on Jan 02, 2017
check all fuse and relays, check the trac and brake sensor, located in the engine compartment, get a scan tool and check for error code.
Posted on Jul 31, 2009
I have a 2001 impala with the same problem for years. Took it in many times, replaced battery, alternator, starter, talked about taking the steering column apart. Finally noticed that it never was a problem when I used the original car key. Problem only happened with a key I had made. Started using the original car key and it has never happened again. Other friends have told me similiar results with their cars - a Lexus and a Mustang.
Posted on May 26, 2009
Check the fuel pressure, bad fuel pump or sock on the fuel pump and fuel filter check spark plugs and check distributor cap, a fuel pump is $273.00 or a bad injector $110.99 or BWD Fuel Vapor Pressure Sensor for $35.99 any of these parts could cause the problem, so without doing a fuel pressure test it is a guess, if the vapor switch is bad it could cause a long crank time if the fuel pump is bad it has a check valve in the fuel pump, if the check valve goes bad the pump can't maintain fuel pressure so on start up the fuel has to pump from the tank all the way up to the fuel rail, if the injectors is bad it could leak after engine shut down and cause you to lose fuel rail pressure. Also the fuel vapor sensor could be stuck open and could cause the problem, all need to be tested, you can rent the fuel pressure tester from AutoZone or advance auto or Shucks they return your money when you bring the tool back as long as you buy the parts to repair it from them. That would be the first thing I would check fuel pump pressure and if you replace the pump then change the fuel sock as well. That model was not meant to burn ethanol and can kill the fuel sock the fuel pump and filter.
Posted on Jul 04, 2009
I've had this problem under warranty on my '05 Malibu LS. They replaced and reprogrammed the fobs. Looking in my shop manual, it seems the problem is from the content theft deterrent (CTD) system. My car started doing this two years later off warranty and now I just lock the doors from the outside with the key or by pushing the lock stem buttons by hand on each door. The security option in the DIC needs to be set to RKE for this to work though.
Posted on Oct 14, 2009
Sounds like the starter is the culprit,when the brushes in it are almost gone they will work intermittently and if the brushes aren't touching then you won't even get a click because of the lack of ground for the pull in portion of the starter solenoid winds.The next time it won't start,give the starter a tap or two to confirm this.It should start if i'm right.The starter is under the passengers side just to the rear of the front tire,bolted to the bell housing.
Posted on Dec 27, 2009
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