Will NOT Start when Engine is Warm

[Labrecski11]

My sister has a 1999 Grand Am. She is currently having a problem. Ill break it down step by step and maybe you guys can help

Starts up fine.
Idles fine.
Drives a distance fine (about a 40 mile test drive)
Temp is normal
Shut the engine off.

Try to start it back up
It will "start"
Idle really rough
Engine dies.

Let it sit for a little while (30-60 mins)
Starts fine
Idles fine
drives fine
temp is fine

Any ideas?

[Grandam1999V6]

here you go, this was discussed a few days ago. try using the search button next time. ;) hope it helps!

http://www.gaownersclub.com/forum/showthread.php?threadid=79682

...and btw :welcome: to the GAOC

[norbit2]

I had that problem and after it was warm I had to give it gas to get it to start. Long story short went on and got worse for three years and them made a-lot of stupid problems. Turned out to be my fuel pressure regulator.

[rixGAphx]

Ditto on the Fuel Pressure Regulator as the culprit, nless the SES light is 'on' (though you would have said so, right?).
About $50 for the part at Checker/autoZone etc., and 1/2 hour to change (though some are absolute PITA's to remove).

Hope this helps,
-Rick

PS: I don't know WHAT that thread that Granam referenced was trying to say.
Nobody analyzed the problem, and coupe told everyone they were blowing smoke. :shrug:

[Matt95GT]

O2 sensor is another common failure that will cause warm-start problems.