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Smog Check & Emissions Questions and Answers

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  Question Answered
  1975 GMC Jimmy Factory Emissions Equipment
by Matt   
Yes (1)
  Does a Non-Op GMC VanDura need a smog check?
by Kathy   
Yes (1)
  1995 GMC Safari failed smog test for high HC
by Dennis   
Yes (1)
  1991 GMC Sierra 1500 failed smog test in all categories at 15 mph
by chris   
Yes (1)
  OBDII Trouble Code PO430 Code 2001 GMC Sierra
by Jamie   
Yes (1)
  1994 GMC Sonoma 4.3 litre v6 vortec with a throttle body.
by Abidon   
Yes (1)
  GMC Yukon oil change and smog test on same day
by yollie   
Yes (1)
  GMC Safari smog check failed due to fuel EVAP test.
by Jimmy   
Yes (1)
  2003 GMC Sierra 1500 from Oklahoma
by John   
Yes (1)
  I have a 1976 GMC camper special with a big block - What if it fails the smog check?
by mark   
Yes (1)


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