1999 Chevrolet Tahoe Had Misfire No5 Cylinder Did Complete Tune Got Iac Code

1999 CHEVROLET TAHOE
150,000 MILES
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Had a misfire in no5 cylinder did complete
tune up then got iac code rpms higher than
expected replaced iac and ips both were in bad shape adjusted iac as directed still no change rpm runs at 1000 in park vehicle ran fine before tune up except for misfire im pulling my hair out please help
Mar 14, 2013 at 5:25 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Do you still have the misfire? Have you checked for vacuum leaks?
Mar 14, 2013 at 5:31 PM
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