Hi, All of a sudden I've lost the first 2 speeds on the blower motor in my 2001 Super Crew. Any one else ever experience this or is it a fluke? And what kind of nightmare is it going to be to fix it??
Thanks

 

Blower motor resistor most likey shot.

Not uncommon, not expensive at all, kind of stand on your head to get to it under the dash :

Thread on the topic :
https://www.f150online.com/forums/sh...light=resistor

 

Most likely the resistor block. It is bolted to the blower motor housing behind the glove box. They go bad over time, I am surprised mine has yet to blow. 2 screws and a connector. No biggie. Check the auto parts store, they probably carry them, but if not, they don't cost too much from the dealer.

 

Easy fix. There are 3 resistors on it. Any speed can fail. Look up under the dash behind the glove box. It was actually cheaper at the dealer for me.
I tried murrays auto and they would have to order it. Auto zone was more than the dealer. Also , most dealers keep them in stock.
bullseye670..................

 

Wooooah, guys... back the truck up a second.... need more info first: Manual HVAC *****, or Electronic Automatic Temperature Control? It makes a HUGE difference in troubleshooting this one.

If it's manual, then yes, it's more than likely the resistors, $15, two screws and a plug is all you need. If it's the EATC, it's likely the speed controller.

-Joe

 

He said he lost the first two speeds... If he had some kinda star-trek, Buck Rogers electronical gizmo AC control, () does the operator have control of the fan speeds at all?

Haha, truthfully I guess I never figured they put those auto-temp systems in trucks, didn't even think about it.

Good point, Joe. Maybe looneyloop will chime in with more info.

 

They started installing the EATC in '01, and yes, there is a manual adjustment for the fan speed via a pair of buttons on the unit. That's why I asked.... Can't make assumptions around here.

 

Joe makes a good point.
I read first 2 speeds, and I thought all EATC systems had 5 speeds to the setting ( or at least 5 marks on the fan override display )
This is why I ran to the blower motor resistor.
Joe is right, make an assumption, and you have a 50% chance of being wrong, and sending the guy on a wild goose chase. Without the trim level completed in the profile, it is a bad thing to make an assumption.

 

Oops,a little too fast outa the gate!

 

OH YES !! I have to stop assuming stuff when I read a post, as in assuming I know what I am talking about

I like the Buck Rogers electronical gizmo. The first thing I thought of was the model rocket ship on the wire, with the sparkler hanging out the back. Oh, the specifal effects of yester-years

 

Yeah, me too, haha. I jumped in with that the same time you did, because I have seen about 5 instances of the same issue in all years of fords, and of course it has always been the resistor block. So I thought I knew what I was talking about as well.

Hah, yup. You knew they were cheesy (the smoke went up, haha) but somehow it didn't matter. As time went on, the FX got more and more realistic, at the expense of dialog and plot in many cases.

 

Oh crap, I forgot about the smoke that went straight up the back. Good catch. YEs, things got better FX wise, but use the first real big computer FX movie.....Tron.
What the heck was that movie about anyways ? I only recall pink and blue or purple, and nothing else. Jeff B did a better job in the Big Labowski ( where is that puke on your shoes emoticon ? )

 

Thanks guys, now for the fun part. is the resistor block under the dash or in behind the plastic behind the glove box??

 

Assuming you have the manual HVAC controls (which hasn't been established yet as far as I know), the resistor block is under the passenger side dash on the heater box. It's held in place by two screws and has a plug that connects to it. It's about a $13 part and takes all of 10 minutes to replace it.

Be sure and inspect the pig-tail that connects to it for any heat damage. If a poor connection causes corrosion to the terminals, a replacement pigtail is all of $15 at the dealership too. Odds are it's fine as the F-150s aren't prone to damage to the connector (unlike the Explorers and Rangers that have the connector under the hood).

JMC posted some pics of it on here a while back... with enough searching, you may find them.

-Joe

 

Perfect, It has manual controls that I forgot to mention. I'll go digging behind the glove box