car starts and stalls right away

12-03-2010, 11:00 PM
here is the deal car was sitting for a month and needed a boost! i bosted it, ran good for 15 min! i shut it off to see if it would start and it didn't! so i changed the battery. i removed the intake tube to get axces to the terminals. the air temp sensor managed to come out while doing so! i put everthing back and the car starts but does not idle! i tired many times but no luck! i am pretty sure something else must be unplugged! what can it be?:banghead: sorry for the long post but its exactly what happened!!!

12-04-2010, 11:22 AM
If this is a 3400 motor, Check the wires and the plug going to the IAC motor on the throttle body.

12-04-2010, 05:23 PM
its a 99 with a 2.4l whats the IAC? thanks

12-04-2010, 05:33 PM
IAC is idle air control.

12-04-2010, 07:54 PM
where can i find that on a 2.4?

12-05-2010, 11:13 AM
On the throttle body. You may have to remove the intake ducktwork again to gain access to it.

12-06-2010, 09:24 PM
thanks guys! gonna check that out when i go to the barn! but i would be surprised that it would be that! the car ran perfectly just befor i changed the battery :S

12-07-2010, 12:36 PM
Check out the link below for more info on the IAC:

Hope this helps.

12-10-2010, 06:21 PM
thank you guys! but looks liek ti has something to do with the security! its on steady!

12-11-2010, 06:36 PM
yes it's probably a wire running down steering colum they make wire so little it will break or could be the whole ignition cylender.

12-11-2010, 09:05 PM
No you just need to do a security re-learn. I am not sure how to do it on the alero, but if its the same as the grand prix, turn the key to on not start, leave it sit for a half hour, turn it off, and back on, let it sit again for a half hour, and one more time off, and back on for a half hour. After that dont turn off, just turn to start. This may not work for alero though.

Do you have a different key you can try?

12-11-2010, 09:18 PM
i did try that but for about 10-15 minuits! 3-4 times ina row! with no luck! someone told me it might be a bad car starter causing the problem!? i have no idea anymore! :S

12-15-2010, 10:48 AM
Is the security light lit on the dash when you start the car?

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