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Smog Check & Emissions Questions and Answers

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  Question Answered
  2001 GMC Sierra EVAP Secondary Air System Not Ready
by DENNIS    04-12-2017 01:33 PM
Yes (1)
  2001 GMC Yukon Monitor Will Not Reset
by Dana    04-01-2017 08:13 PM
Yes (1)
  GMC Safari Failed Smog Due Monitor Incomplete
by Ernest    12-03-2016 10:20 PM
Yes (1)
  2004 2500 GMC Diesel Crew Cab Glow Plug Problem
by BRUCE    10-02-2016 12:51 PM
Yes (1)
  Condensation and Water Flow Back to Air Injection Pump
by donald    09-03-2016 06:49 AM
Yes (1)
  Trouble Code P1416 on my 2001 GMC Yukon
by stephen    06-09-2016 08:45 PM
Yes (1)
  GMC Suburban 5.7L Gas Engine Failing for High NO
by Michael    05-22-2016 12:03 PM
Yes (1)
  Does 1997 Diesel GMC Van Need a Smog Check?
by arturo    05-02-2016 07:20 AM
Yes (1)
  GMC Silverado/Sierra CAT Monitor Won't Run
by dan    09-10-2015 01:12 PM
Yes (1)
  GMC Suburban Catalytic Converter Not Correct
by JoAnn    05-01-2015 09:00 AM
Yes (1)


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