1984 GMC SIERRA
4,000 MILES
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WEHRWEIN
  • MEMBER
  • 1 POST
The idle is high and I've check for vacuum leak but it was fine. What else can it be
Feb 5, 2013 at 3:45 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Do you have a carb on the vehicle or is it fuel injected? If fuel injected, check the idle air control valve. If it has a carb, you can adjust curb idle speed on the carb itself.
Feb 5, 2013 at 3:06 PM
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