my 97 Blazer starts fine in morn but after 15 to 30 mins of driving will die as soon as I let off gas pedal. Will restart some times but after a while I have to let it cool down before it will start again. Can someone help?
Thanks

 

Sounds like the fuel pumps getting old. Have the fuel pressure checked when it happens. It should be around 60 psi and hold above 50 for 10 minutes.

 

Could also be you EGR Valve, pull it off, inspect it, and clean it with some brakes parts cleaner. I was having the same problem when I first bought mine.....I did however, eventually have a check engine light come on. Does yours?