March 23, 200917 yr Hey everyone, I just joined. I've got an '89 DL with some problems and I'm hoping you can help me out. This is one of them... My A/C and heater fan will only work on the high speed. I'm not completely automotive smart, but I can usually figure things out. I didn't know if there was a vacuum or electrical problem that would lead to this. I appreciate your reply!
March 23, 200917 yr there is a resistor coil Assembly under the passenger side dash, screwed on to the air box, the coils inside it are shot, only high speed works because you have an open in all three resistor coils, speed 1,2, and 3 go thru resistors. speed 4 is power thru no resistor. you have to remove the plastic panel under the glove box, or you can remove the glove box door to get access. i cant find my camera right now, let me know if you need pics, they can be rebuilt if you can use a soldering iron, or you can buy a new or used one, usually a junkyard resistor Assembly is bad too. either way its very easy.. Edited March 23, 200917 yr by ivantruckman
March 23, 200917 yr Common problem. Blower resistor block. Do a search and you will get all the info you need. I only have the last 2 speeds on mine but i havent found a good one to replace it with.
March 23, 200917 yr Author Thanks for the help! I'll hopefully be able to take a look at this this weekend:)
March 25, 200917 yr This place has resistor pack for subie. I cant remember part number at the moment but someone will have it. http://bbb-carb.com/std/resistor.htm
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