Blower Motor (S14)

My blower motor stopped working… I checked the fuses and both of them were blown… I replaced them and the new ones burnt out as well…

My guess is that there’s either a short somewhere in the circuit or the motor has siezed up and it’s drawing to much current (in-rush current) to get it to spin and therefore the fuses are blowing.

I have to take out the whole unit and see what kind of motor it’s using.

My question is, can I use an S13 motor? And, where can I get one? I don’t mind if it’s used, as long as it works.

Also, does anyone know if I can remove it w/o taking off the dash?

Thanks.

edit: That damn thing scared the crap out of me just now. I accidently turned the fan switch on, and smoke started coming out of the vents. I quickly turned it off. I went to unplug the motor and disconnect the resistor from it. I basically burnt my index finger by trying to reach the wires, because I touched the metal enclosure by accident.

The motor is blown, and I found another one for $70 which I will pick up tomorrow.

I’ll post pics if anyone is interested once I switch it out.

Oddly enough, I went to use my heat today and it mostly doesn’t work either. For some reason, levels 1-3 don’t work but 4 works fine. I figured if it goes, it would all go… why would only 3/4’s of the speeds crap out?

Jason

easy fix man… you need the blower motor resistor… switch positions 1,2 & 3 go throught the resitor (reducing the voltage and thus making it turn slower)… switch position 4 bypasses the resistor, and gives full 12V to the blower motor.

here’s the schematic and the physical location of the resistor

edit: btw, that’s for the S14, but the S13 shouldn’t differ much at all… just go to the dealership and ask for the blower motor resistor… it should fix your problem.

here’s the location of the resistor on the S13 when you take out the glove box:

Hi Lith… thanks for the quick diagnosis! I’ll post back once I get ahold of the resistor and manage to install it. I’m assuming the resistor on the motor will be a task in itself to get to.

Thanks.

Jason

hey man, no problem… I tried to figure out what the problem was on mine, so I studied the schematics and the diagrams in the last few days.
The resistor might be a bit hard to get to, but you should be able to replace it within 10-15 min…

Post back to see if that resolved your problem. I think this is a common problem for S13’s and S14’s. So I’m sure others will search for it later on.

Hey man. I replaced the heater resistor on my car. Its really easy. its just behind the glove box so you just have to take that off, not the whole dash. Not sure if this is the same on the S14 though.

Hey man. I replaced the heater resistor on my car. Its really easy. its just behind the glove box so you just have to take that off, not the whole dash. Not sure if this is the same on the S14 though.[/quote]

It’s not the same on the S14. The blower motor is positioned differently and the resistor is turned around by 90degrees basically. So it just makes it harder to get to. But at least there’s no need to take the glove box out. You can reach it from underneath the glove box.

On the S13, you just take the glove box out, and the resistor is right there.

Update:
I replaced the damn thing today. Took me a little over 90 min. to do since I had to take out the ECU to get to a bolt. Maybe I didn’t have to, but it was just easier that way. Here are some pics:
http://www.supload.com/thumbs/default/Blower_Motor_001.jpg
http://www.supload.com/thumbs/default/Blower_Motor_002.jpg
http://www.supload.com/thumbs/default/Blower_Motor_003.jpg
http://www.supload.com/thumbs/default/Blower_Motor_004.jpg
http://www.supload.com/thumbs/default/Blower_Motor_005.jpg
http://www.supload.com/thumbs/default/Blower_Motor_006.jpg

jdulberg: If you plan to replace the resistor, I would also suggest to get the blower motor out and clean it. I can guarantee you that there are some leafs and dirt in it. Btw, that brown plug with 4 wires plugs into the resistor. You can get to it w/o removing anything. Just look under the glovebox. Only 2 screws are holding it in place.

Thanks for the heads up. I ordered the resistor today - $38 from the dealer and the guy said it’ll be in tomorrow or Thursday. I’ll repost with the results.

Thanks.

Jason

To follow up… I just replaced the blower motor resistor in about 5 minutes and everything works as it should now.

Thanks for the diagnosis!

Jason