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def heater

  1. Gauges, Electronics and Wiring.
    Hey everyone new and fresh to this forum and to diesels in general. Apologies if this is in the wrong category. I have a 2013 Chevy Express 3500 Ext. 6.6L LGH Duramax of course with all that lovely DEF system joys. Had a crap load of codes that came shortly after i bought it recently and was...