2003 Pontiac Grandam wont start

Turn key on but do not attempt to start. Wait 10 minutes. Turn off. Then on. Make sure security light goes off before trying to start. Sounds like security system thinks vehicle is being stolen

Pull the steering wheel hard to the left and try turning the key at the same time.

The security system is called Passlock. And yes it will turn off the fuel injectors when it starts to fail. Go check out this link, should help inform you about how the system works along with some ways to get around it.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Used parts such as starters and altinators don't last. It might **** but it sounds like you need to buy a new starter,altinator, and battery. Or just start with buying one at a time.

REMOVE FUEL PUMP RELAY.REPLACE FUSE IF STILL BLOWS SHORT IN PCM TO IGNITION CIRCUIT.IF FUSE DONT BLOW I AM LOOKING AT A BAD FUEL PUMP RELAY OR FAULTY FUEL PUMP.

only way to tell is to get it plugged into the computer and find out whats going on could be 4 different things causing it fuel, air, computer, sensor

Have you check the fuel filters? I had that similar happen with my 03 GrandAm the filter was plugged. Also the fuel pump was acting up so I had that replaced as well. How many miles on your car?

Hi. I have a 99 Pontiac Grand Am. I've had that problem before. All I did was...whenever the security light would flash...and the car wouldn't start...I would take the key out...and just sit there and wait for about 10 to 15 minutes. Then the red light would stop flashing....and the car would start. That would happen about 2 times a year. Now I'm having trouble getting it to start. It's trying to...but won't turn over. My mechanic put a new computer....but now he doesn't know what is wrong. Please help. Thanks.

mine does the same thing, but mine is a slow drain on the battery. Have you had that checked?

make sure transmission is in park.

slide a stick or twig up underneath the steering column which will hold a specialized switch in place. Try the ignition. Should it start, the actual problem in the transmission interlock switch for the transmission [located in the center console] which also protects the ignition from turning on [secondary switch prior to the ignition switch]. What a ***** to have found... took me 8 hours but GM wanted 800$ for the fix.