1991 GMC Sonoma idle

1991 GMC SONOMA
127,000 MILES • 6 CYL • 4WD • AUTOMATIC
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HAM10
  • MEMBER
  • 1 POST
when i start my truck up it idles kind of high and then after bout 30 seconds will die if you don't hit the gas
Sep 1, 2008 at 9:10 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the idle air control valve and fuel pressure
Sep 2, 2008 at 12:43 AM
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