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  1. Engine & Drivetrain
    I have a 2014 GMC Terrain 3.6l awd with the 6t70. I had a new tcm put in last year and I had some new issues a few weeks ago no codes, I ended up rebuilding the transmission (shot bearings and output speed sensor and a bad 35r wave plate), changed all the normal parts but the tcm. Got it all...
  2. New Member Section
    2014 GMC terrain WITH the 2.4 flex fuel model... Started getting a check engine light found out it was the intake and exhaust sensors.. Replaced them and it went away.. Got another check engine light telling me its the o2 sensor.. Got it out and what do you think. ? Having the right tools made...
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