1990 Chevy Suburban high idle

1990 CHEVROLET SUBURBAN
235,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
SKRODGERS
  • MEMBER
  • 1 POST
my 1990 3/4 ton suburban has a 454 tbi and it idles too high. I have checked for and repaired any vacuum leaks. I have no codes and all sensor wires are connected.
Nov 28, 2009 at 1:52 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
IT has been awhile since I worked on one, but I believe there is a idle screw on the throttle that can be adjusted on your vehicle. Check that and let me know.
Nov 29, 2009 at 9:10 PM