Fan speed switch not working.

I'm at the dealership hoping to get rid of this annoying noise.

 

The hum that these guys are talking about? This isn't about the chirp/ticking noise.

 

I think we are talking about the same noise. dealership tried to charge me 325. No thanks.

 

I'm going to try Headcase's suggestion first and try the WD-40 method. If not, I'll most likely try Gregman's suggestion with the new TSB blower motor resistor and pigtail install.

 

Bought the parts for the TSB (My truck is long out of warranty) and did the fix this afternoon. The insulation on the wire was broken and bare wire was showing through and there was a hole burned through the connector as well. So far so good.

 

Do you have the OEM part numbers for the blower resistor motor and pigtails?

 

No it's not a chirp tick, it is def in my blower motor for Air. It's a very steady hummm, I will record it and post it.

 

The part numbers are in the TSB. Also, look on post 141 of this thread and in the 2nd and third pics you will see the part numbers. (87138-04052 for the resistor and

$32 82141-04M40

82141-04M40 for the pigtail)

 

Alright. I'm going to get these parts ordered this week.

Are pigtails necessary to replace with the new blower resistor?

 

I had posted numbers for a new plug that was cheap. OEM numbers are in the TSB as stated.

 

I would go ahead and do them both at the same time. My pigtail had burned through the connector and part of the wire was bare as well. My thinking is if you are going to do it, do it right the first time so you don't have to do it again.

 

thanks for the info.

 

This sounds exactly what is going on with my 2007 will post results as soon as I fix my connections

 

My blower motor quit working on all speeds. Could this be the problem if it's not a fuse? 2007 tacoma.

 

*EDIT*
Someone claimed it. Thanks.

 

If it was a few weeks ago.... Anyway, sincere commendation for being so generous! Someone will snag it, I'm sure. If not, try the Pay It Forward thread.

 

Nevermind, I changed it, it works now.

 

My fan just started acting up a few weeks ago. Played with the wires going to the resistor and tapped the blower motor and imagine that. POS started working. Ordering a new resistor from rock auto and am going to try to clean up the wires. This is my first Toyota, can't say I'm impressed... Still upset about my truck lunging forward at stop lights.

 

Have the same symptoms (fan only working on high setting) on my '07 since last summer. Checked the wiring harness and the white/blue wire is discolored (burned). I can see that without even removing anything. Wiggling the wire results in getting all the fan speed settings back. I suspect it won't last for very long.

I will be ordering parts from the TSB and hopefully the fix will go smoothly as it seems to be the case for everyone.

I already did the overhead temp/compass display re-soldering couple of summers ago. Small things like these happening every once in a while are disappointing and annoying on a not too old truck. Thanks TW once again.

 

I let this go on for about 15k miles. It got to the point even after I regreased the pins it wouldn't take long for another outage to occur. I was done.

I had the dealer do the TSB for me. I printed out the TSB and they followed it to the letter. Yeah I didn't feel like crawling under the dash and crimping wires so I paid for a younger back at the dealer to do it for me. Cost me about $250 but the end result was great.

Interesting to note that all four of the wires had discoloration from heat - it was only one wire the first time I looked at it. I wonder at what point the insulation would have fully melted and caused a much bigger problem?