1985 Chevy Corvette rough idle

1985 CHEVROLET CORVETTE
105,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
RICK EVERETT
  • MEMBER
  • 1 POST
Hi Guys , I just rebuilt the 350 in the vette and as far as i can tell every thing is hooked up and operating corectly the problem is the rough idle and wanting to die, bring up the r's and it smoothes out where should i start. keeping in mind that the ECM probably has a thousand codes set from being disconnected and timing being messed with etc ,etc . what do you think ? Thank you Rick
Feb 3, 2008 at 4:28 PM
Advertisement
Avatar
BLACKOP555
  • CERTIFIED EXPERT
  • 10,386 POSTS
since you say you just rebuilt it, i would check the gaskets for starters, check the EGR valve and gaskets since you probably took that off, and most importantly make sure everything is tight.

to check for vaccum/gasket leak take a can of carb cleaner or starting fluid and slowly spray each gasket, metal metal mating surfaces and vaccum lines, if idle changes you found a leak.

maybe you have a faulty IAC module.
Feb 3, 2008 at 6:43 PM