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Overdrive Tiggers, The Check Engine Light to Come On.

Discussion in 'General Chevy & GM Tech Questions' started by EthanP89, Jun 17, 2013.

  1. EthanP89

    EthanP89 New Member

    Recently every time my Sierra goes into overdrive it triggers the check engine light to come on. I have plugged it into the computer at my familys garage and it's coming up evap valve. I took the valve off and blew it out with an air hose and reinstalled it and reset the code. The light stayed off for a few days until today driving back from work I passed someone and as soon as the overdrive kicked in the light came on. I am going to plug it back into the computer and see what it reads. I'm just curious if anyone else has had this issue.
     
    Last edited: Jun 17, 2013
  2. donyms

    donyms Rockstar 4 Years ROTM Winner 1000 Posts

    Welcome to the club Ethan, it's great to have you aboard. I have not had that problem but I did have the coil on mine go out. :glasses:
     
  3. 99'HEARTBEAT

    99'HEARTBEAT Epic Member Staff Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor

    ****Thread Moved****
    To The
    General Chevy/GM Tech Section

     

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