CRANKS BUT WON'T START
Your car may have set a problem Code and a scanner will identify it. Since you have all dashlights on during the cranking phase, you just don't see it until the engine would start.
What you can try is a little starting fluid. If the motor tries to start or runs briefly, you have found that you have a fuel problem and the engine is firing. There is a test tap on the fuelrail for fuelpump pressure. If you have no pressure it indicates the fuelpump is not working and you need to find out if it is getting power. Also, if there is fuel pressure, you need to find out if the injectors are working.
The autoparts stores have loaner programs for the injector bulbs and the fuelpressure meter. Each area can be tested to see why you are not getting gas into the engine.
Should you not get results from the starting fluid, you will need to look at the spark system. If the starting fluid does nothing, then you probably have no spark. There are ignition Relays which provide power to the coil and crankshaft sensors which tell the spark to go to a particular cylinder. If you do not have power going through the coil, it may be bad or not receiving power from the ignition or crankshaft sensor.
Autozone.com has free wiring diagrams and fusebox diagrams available online when you register your car on its site. If you suspect a bad coil, it can be hand carried and bench checked.
Sep 10, 2012 |
2003 Chevrolet Malibu