heater motor troubleshoot.
#11
02-12-2013, 10:49 AM
My heater was working fine one winter and then the next winter the fan speed switch wasn't working. I had unplugged the fan and used jumpers to the battery and it worked. I took out the switch for the fan speed and it looked good. I followed the wires from the fan speed control back to the heater controls by removing the stereo and there it was. The plug had slipped back some when messing with the stereo over the summer. That plug is pretty loose on mine so it slipped off easily.
So what exactly is not working on yours? Mine had heat while driving but no fan control. Some common problems are trash in the heater box blocking air flow and corroded diverter valve for the coolant going to the heater box.
Good luck with it. It's too freakin' cold to go without a heater right now.
So what exactly is not working on yours? Mine had heat while driving but no fan control. Some common problems are trash in the heater box blocking air flow and corroded diverter valve for the coolant going to the heater box.
Good luck with it. It's too freakin' cold to go without a heater right now.
#12
02-12-2013, 10:57 AM
Legend
#13
02-12-2013, 06:56 PM
Ill have to check the fuse power but think there is power there since it clicks and sparks a tiny bit when I take it out then put it back in.
#14
02-12-2013, 07:07 PM
Legend
probably shouldn't click or spark unless the key is in the run position and even then you must have the heat on. i would still test for power. this will help you figure out where your problem is. could even use a test light. if there is power at the fuse then you may have to tear apart the dash and check for power at the switch. from the fuse the power go to the switch.
#15
02-13-2013, 02:11 PM
You mentioned working on the stereo, did you check for the plug to the back of the heater controls from the fan switch. You will have to remove the dash to check it unfortunately but sounds like you might have to anyways. Mine too had heat but no fan to blow it. So basically, the only time I would feel it was while driving like a vent with no fan on. Did you hook up a couple of jumper wires to the battery from the blower motor to make sure it works? Your problem sure sounds like mine.
#16
02-14-2013, 12:58 PM
You mentioned working on the stereo, did you check for the plug to the back of the heater controls from the fan switch. You will have to remove the dash to check it unfortunately but sounds like you might have to anyways. Mine too had heat but no fan to blow it. So basically, the only time I would feel it was while driving like a vent with no fan on. Did you hook up a couple of jumper wires to the battery from the blower motor to make sure it works? Your problem sure sounds like mine.
#17
02-14-2013, 01:26 PM
Legend
you know the switch is held in with 2 screws? 1 on top and 1 on the bottom. i think you really have no choice but to remove the dash. its not like it is that hard. i can do it in about 1 minute. i just had my dash out the other day to install a voltage gauge and clean up some of my wiring.
#18
02-15-2013, 12:57 AM
#19
02-15-2013, 01:08 AM
Legend
i guess that is the problem with mechanical gauges. i can almost leave my 3 pod gauge setup with the dash when i take it out. i also have never moved my gear selector to 1st. never needed to. now i don't know nothing about the plastic collar on the steering column. i don't remember any of my trucks having them or if they did i must have just wiggled over it.
#20
02-15-2013, 01:46 PM
you know the switch is held in with 2 screws? 1 on top and 1 on the bottom. i think you really have no choice but to remove the dash. its not like it is that hard. i can do it in about 1 minute. i just had my dash out the other day to install a voltage gauge and clean up some of my wiring.