06 colorado back fireing

2006 CHEVROLET COLORADO
5 CYL • 2WD • MANUAL
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IVYIVE
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  • 1 POST
I just change the sprak plugs on my 06 colorado n the engine light turn on help meeee its back fireing whats the caliber on the spark plug
Feb 8, 2011 at 3:01 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
That's a coil on plug system so you probably did something wrong with one of the coils or cracked a plug. Have the check engine codes read and they should tell you which cylinder has the problem.
Feb 8, 2011 at 4:08 PM
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