Blower motor resistor

[mrjones]

Has anyone replaced their blower motor resistor? Mine is out, and it's not in the greatest of places. Just wondering how many curse words to bring for the job.

[JBeezy]

It's not bad at all. Replaced mine a few months ago, after I was caught in the rain 60 miles from home with no defrost. Disconnected the hose sitting in front of it and it was pretty simple. Bought a new unit at Autozone, and it's been fine every since

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[MyBlackBeasts]

Has anyone replaced their blower motor resistor? Mine is out, and it's not in the greatest of places. Just wondering how many curse words to bring for the job.

Others say it is a PITA, I've done nine twice, both times simple 10ish minute job.

Use a bungee cord to pull all the hoses out of the way. 1/4" ratchet with 12' extension and a 1-piece universal socket (a socket with a separate u-joint will make the job a PITA - using 3/8" set up will also make it difficult). Gentle patience keeps the screw on the socket till the fingers can hold it.

[Svashtar]

Others say it is a PITA, I've done nine twice, both times simple 10ish minute job.

Use a bungee cord to pull all the hoses out of the way. 1/4" ratchet with 12' extension and a 1-piece universal socket (a socket with a separate u-joint will make the job a PITA - using 3/8" set up will also make it difficult). Gentle patience keeps the screw on the socket till the fingers can hold it.


Are you talking about the blower motor speed control inside the firewall? 10 minutes?? The first time it took me about 3 hours. Absolute beyotch. The second time I got it down to about 90 minutes, mostly because I used a different setup to hold and reinstall the screws.

I have the rear engine cooling mod hoses and couplings right in the way. There's maybe an inch of clearance, and all that had to come apart to get access.

I agree, 1/4" drive with a 12" extension. I'm not sure what you mean by 1-piece universal socket? That is, I have a set of Craftsman universal sockets, but there's no way to get to the screws with a straight socket, universal or otherwise. I used an 8mm wobbly IIRC, and used electrical tape inside it to keep the screw from falling out. I have magnetic socket inserts, but not in that particular size.

I had to force the new unit down and in at an extreme angle as it was very tight back there; I was afraid of scraping up the circuit board, but it all worked. Never want to do that job again.


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[Spectragod]

Are you talking about the blower motor speed control inside the firewall? 10 minutes?? The first time it took me about 3 hours. Absolute beyotch. The second time I got it down to about 90 minutes, mostly because I used a different setup to hold and reinstall the screws.

I have the rear engine cooling mod hoses and couplings right in the way. There's maybe an inch of clearance, and all that had to come apart to get access.

I agree, 1/4" drive with a 12" extension. I'm not sure what you mean by 1-piece universal socket? That is, I have a set of Craftsman universal sockets, but there's no way to get to the screws with a straight socket, universal or otherwise. I used an 8mm wobbly IIRC, and used electrical tape inside it to keep the screw from falling out. I have magnetic socket inserts, but not in that particular size.

I had to force the new unit down and in at an extreme angle as it was very tight back there; I was afraid of scraping up the circuit board, but it all worked. Never want to do that job again.


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He is using a socket/swivel combo, all one piece.

As most things find a tool that works. And you can cut install time to almost nothing, kinda like blend door motors, book time, 7 hours, real life, 45-60 minutes with the right tools.


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[Svashtar]

He is using a socket/swivel combo, all one piece.

As most things find a tool that works. And you can cut install time to almost nothing, kinda like blend door motors, book time, 7 hours, real life, 45-60 minutes with the right tools.

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Essentially what I used, as the extension I have locks into the swivel socket. My problem the first time is that the screws wouldn't stay on the socket. Once I figured that out it went faster. Without the cooling mod it wouldn't have been such a pain.

I know the right tools but then combined with the technical knowledge of the best way to do it and having previously done it. The first time always takes the longest. (I'd probably budget a day for the blend door motor!)

At the same time if I were to do the rear air springs again I think I could do both sides in an hour no problem.

[Spectragod]

My first blend door motor took me 1:45, I can do them in just under an hour now, there is no need to pull the dash.


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[johnjamis]

Essentially what I used, as the extension I have locks into the swivel socket. My problem the first time is that the screws wouldn't stay on the socket. Once I figured that out it went faster. Without the cooling mod it wouldn't have been such a pain.

I know the right tools but then combined with the technical knowledge of the best way to do it and having previously done it. The first time always takes the longest. (I'd probably budget a day for the blend door motor!)

At the same time if I were to do the rear air springs again I think I could do both sides in an hour no problem.



I replaced the blower motor speed control today using some of these ideas.

I did not remove any heater hoses. Use wire and/or a bungee to pull the hoses out of the way.

Use a swivel 1/4 socket with a long extension to remove the screws and the part will come out. Put two sided tape on the screw to hold it in the socket when replacing the screw in the unit.

Use a large long screwdriver to help pry the unit out of its cavity past the hose. And the screwdriver also helps to guide the new unit into the cavity.

It took me about 1/2 hour after I had the tools and parts on hand.

Thanks to all for your great ideas to simplify this job.

[Gerry24]

Those tiny screws were a pain in the...

[musclemerc]

I swapped my BCM when I got home yesterday. The car is starting to show her age