Question about Pontiac Grand Am

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I had problems with my security light twice. But now my grand am wont start it turns over starts for 2 seconds then dies. I have changed the fuel pump but still doesnt work

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  • aishiafrank Jul 28, 2009

    It is getting fuel but still not working...

  • aishiafrank Jul 28, 2009

    I have had two problems with my security system...but the light is not on..but my car turns over and it starts and turns off after 3 seconds... I have changed the fuel pump and that its not the problem.

  • aishiafrank Jul 29, 2009

    The injectors are working fine. The security light is not on and it still doesnt want to start.

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Try checking the injectors on the car. Also check that it continues to get spark after these two seconds. Is the security light still on, if so, then the dealer may need to reset it. Let me know what you find.

Benjamin

Posted on Jul 28, 2009

  • Benjamin Patri
    Benjamin Patri Jul 29, 2009

    You should get the trouble codes read on this at this point. If you could get it to AutoZone, they would do it for free, otherwise see if you can borrow a code reader from a friend or possibly from a shop or auto parts store or have someone come out and do it. Hopefully it will show what is causing it to stop running again which I think still may be the security system(which is a dealer problem that they should deal with) or it could be an ignition cylinder problem possibly

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Hi,
Well first you need to see if it is getting fuel and fire!
On the injector rail, is a fitting that will look similar to a valve stem on your tires. You will need a liquid pressure guage to see if it has enough fuel pressure. Hook the gauge up and then turn you key switch just to the on position, and then back off. Your pressure reading should be near 90 lbs.
The next ting to do is get a timing light and a friend, connect the timing light to a plug wire and have your friend turn the engine over while you hold the trigger on the light, it should strobe. Check each wire this way.
If you don’t have fuel, or fire, or both, start by checking fuses.
Lastly some remote starters have a security system built in that turns the power off to the fuel pump, if you aren’t getting fuel this could be the problem.

Thanks!
mannu_rakesh

Posted on Jul 28, 2009

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Check obvious problems first. Do you have any indicator dash lights on when trying to crank the engine? A security light means your Passlock system is malfunctioning. If you can turn the engine, then the battery is most likely ok but you can disconnect it for about 5 minutes then reconnect it which will reset the computer. I had an issue with a 99 grand am dieing after starting. Pushing the key in kept it running. Turns out my ignition switch in the dash went bad.There are three coil packs in the v-6 and two in the 4 cylinder. A loose wire would more likely be the cause. Check the fuses under the hood in the convenience center. A bad computer, module near the coil packs, or a bad hall effect cam sensor could cause the fuel injectors to not fire and cut off the fuel supply. Check the fuel pump to see if its working by turning the key to on but not cranking it. If you hear a 2 second sound of the pump then a click then the fuel pump is most likely working.

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It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shuting down while running, im sorry i have no quick fix...

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. For a list of cars effected by this problem. See the NEWROCKIES link on the right side of their page......... They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks.
----- http://newrockies.ca?ap_id=judd0081
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites

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