Nethawk86
New member
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- Location
- Litchfield Park, AZ
Just picked her up. Owner said he never messed with the AC but when he connected the 3 wires under the passenger side dash and turned the key, it started smoking, so he unplugged it. Vehicle is in very nice condition, and besides a very hard shifting transmission from 1st to 2nd (will figure that out next after fluid changes), its killer! I took off the dash vent shroud cover to repair all the heat cracks in the plastic (since everyone wants $700+ for it) and figured id try and see myself what he was talking about. The 3 wires only connect 1 way, so there wasn't any chance he connected something wrong (which he did with the tail lights when he upgraded to LEDs). Factory AC, 6.5 Turbo Diesel, 4L80E.
Plugged them together, turned the truck over into RUN, not starting the engine. Then flipped the fan switch to High and I could hear the fan pulsing a few times before smoke came out followed by a "PFFFFT" sound. Smoke was definitely electrical in smell. Immediately turned off and let it sit for a few minutes. Checked over everything and nothing seemed burned on the outside (but will check thermal next). Unplugged the wires, turned the vehicle back over to RUN again and flipped the fan switch to HIGH and then LOW. Both working fine now, not pulsing or anything. So fan/blower motor works fine when not connected. And the smoke/sound came from the unit under the passenger dash where the blower motor is.
Plugged them together, turned the truck over into RUN, not starting the engine. Then flipped the fan switch to High and I could hear the fan pulsing a few times before smoke came out followed by a "PFFFFT" sound. Smoke was definitely electrical in smell. Immediately turned off and let it sit for a few minutes. Checked over everything and nothing seemed burned on the outside (but will check thermal next). Unplugged the wires, turned the vehicle back over to RUN again and flipped the fan switch to HIGH and then LOW. Both working fine now, not pulsing or anything. So fan/blower motor works fine when not connected. And the smoke/sound came from the unit under the passenger dash where the blower motor is.
