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trans cooler

  1. 01-04.5 LB7 Duramax Powertrain
    On my way home from work today I got about 2 miles from my house and noticed my trans temp gauge was in the red. Also got a notification on the dash stating "trans fluid hot". As I slowed down for the stop sign it downshifted as though it were in tow/haul mode even though tow/haul was not...