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Showing results for tags 'gmt800'.
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Hey all ! Just signed up, but I'm coming over from gmc4x4.com. That forum has pretty much died out, and I need some pretty urgent help. Rear heat ! Fan doesn't spin. Doesn't get voltage at the fan. I have done the following, but I am willing to double check things too: That red wire under the dash. Complete, charged and seems to be ok. I really don't understand this fix, so I'd be willing to talk about it some more. Replaced rear resistor with the new updated one. Millivolts on those wires - nothing else. Fuses checked and appear to be ok. I have the auto-thermostat model with rear and fore temperature settings and "Auto" fan speeds. When I move the front HVAC control, it will disable the rear (Unless it's in AUX and the rear comes to life) The vent flapper doesn't appear to move either. It's like the entire rear unit has just gone to sleep. Voltage applied directly to the motor will spin it. Motor and windings appear ok and test out ok. Does anyone have any ideas ?
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Hey all, I recently had my blower stop working on 1, then on all speeds. Figured it was the resistor pack since I had the same issue a couple of years ago so i pulled it out to check, and found one of the pins in the resistor pack had completely melted both the male and female ends. Following a forum post from somewhere I ordered a full blower motor kit (motor/resistor pack/ new connector and partial harness) and installed it today. The blower now works like it should, except when set to 5 it shuts off. It does click audibly when the dial is set to 5, which i remember reading is proper operation, but the motor does not move. Just wondering where I should start looking. I'm guessing either one of the connections I made on the new harness isn't good enough (can't make enough sense of the wiring diagrams to see which is 5), or rockauto gave me a bad resistor. -
Never been here before but looking to convert her into a 4x4 car camping rig
