1990 Chevy Suburban high idle

1990 CHEVROLET SUBURBAN
235,000 MILES • V8 • 2WD • AUTOMATIC
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SKRODGERS
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  • 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 5:52 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 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 1:10 PM
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