1989 silverado

1989 CHEVROLET SILVERADO
143,000 MILES • V8 • 2WD • AUTOMATIC
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BIGBLUE29
  • MEMBER
  • 1 POST
i have a 89 silverado and the services engnie soon lights goes on and off truck runs great any idea maybe why its doing it?
Jan 8, 2011 at 5:48 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
When the light is on, take it to a nationally recognized parts store and have them scan the computer. If the engine continues to run well, chances are it is an EVAP code issue.
Jan 15, 2011 at 8:55 AM
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