Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet. Hi, I'm Mike from 1A Auto, and I hope this how-to video helps you out; and next time you need parts for your vehicle, think of 1AAuto.com Thanks.
In this video we're going to show you how to replace the AC and heater fan blower resister. We'll show you the beginning but basically the symptom of this part being bad is that you lose fan speeds. Say your fan works in position 1 and 2, but not 3 and 4, or position 1 and 4, but not 2 and 3, or any combination thereof. The only tool you'll need to do this is a 7 millimeter socket with a ratchet. Okay, if you're having any trouble with your fan speeds, say it works on 1 ... it only works on 1 and 4, but no 2 and 3, or any combination thereof, the usual culprit is what I'm about to show you here. There is a resister, and it's right under here. See, right there; and replacing it usually fixes that problem. To replace it, you are gonna want to disconnect it. There's a little tab right in the backside, push on that tab, got to work it back and forth, and pull the connector down. Now, pretty obviously, there are 2 7 millimeter bolts that hold it in, so I'm just fast forwarding through using a 7 millimeter socket and ratchet to remove their fasteners.
Okay, so here's our original, and new one from 1A Auto. See, they're all the same and you can see that even though this original one works, you see by how corroded it is how they can go bad. Any one of these resisters breaks or anything, that's what usually happens. But our new one from 1A Auto, it's going to go in there, work correctly. It's got a nice foam seal on here and everything. Okay, and pretty obviously, reinstalling it is just a matter of reversing the procedure. You want to make sure that the clip ... actually, it really doesn't matter, you can install it either way. But, usually you want to have the clip where the wire harness plugs in, the clip that locks it, that is usually towards the firewall, or the front of the vehicle. I put it up in there and I already have a bolt in it, then start that bolt, then start the second bolt, and then tighten them up. Obviously once it's bolted in place, then reconnect the wiring harness.
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