1993 Buick Lesabre engine idle

1993 BUICK LESABRE
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A1DETROIT
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1993 Buick Lesabre 6 cyl Front Wheel Drive Automatic

engine idle flucuates. and service engine light comes on. i have repalced throttle position switch and repaired torn vacuum lines.
Aug 25, 2009 at 9:49 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Clean out and test the idle air control valve. Also get the computer scanned for code/s Autozone provides this service free this is your starting point what's causing the light to come on.
Aug 25, 2009 at 10:58 AM
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