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Re: Gm RVC charging system blues
Posted to Technical Discussion Forum on 3/25/2020 21 Replies

Your vehicle does not have RVC control. Because of this, entering tow/haul mode will not affect charging rate.

Do you have a diode mounted across the snow plow relay coil?

Are standard resistor spark plugs installed? Login to read more.

21 Replies Received (View Replies)