Chevrolet Repair: Chevy tbi stutter and stumble, intake leaks, dirty check

Question
I have a 1995 chevy chyenne. it runs fine at idol, and after just starting, after 5 minutes or so it will start to stutter under a load, or when i let off the gas it will start to shut off, like the idol drops to 200 rpms, under 30mph sometimes it will run VERY rough. any thoughts would be helpful

Answer
Hi Dennis... check fuel pressure, when was last tune up, check vacum lines for broken or cracked ones. check throttle body and see if it is restricted, dirty. check for intake leaks. check for bad or plugged injs.... these are some of the things that could cause those symtoms...hope this helps