97 DeVille hard to start when warm

I have a 1997 DeVille, 130k miles. Runs great, pleanty of power. Starts fine when cold, cranks forever when warm. Will eventually start, but I mean it cranks for a while. 20 to 30 seconds if I let it go that long. Any suggestions. No codes. Also I used to have a full list of codes (about 23 pages long) that I got in a link from someone here last year. If anyone has that link I would appreciate it, I need to download and print them again.
 
Thanks,
 
Allen

    Hi Allen, it could be a multitude of things but I would bet on the fuel pressure regulator. Remove the engine beauty cover and you will find it,  top - right side. Round thing held by a funny clip and has two lines attached. Pull off the vacuum line and see if any gas comes out of the valve, even slight weepage indicates a bad valve so look close. Hold the vac line near the connection point & see if you can suck gas out. My guess is your going to find a small leak.

Great pictures here:
http://www.cadillacforums.com/forums/cadillac-tech-tips/61600-how-check-faulty-fpr-fuel-pressure.html

Good Luck

Kmec thanks, that was it. It was leaking, replaced it (75 bucks) plugs too (it needed them) now paked it after a short drive and waiting 30 min to see if it starts. Im sure that was it so thanks again. Hope I  can return the favor someday.

The information about the car starting problem is great.  I have a question, How do you replace the fuel pressure regulator with out leaking gas?  Thank in advance.