Clean that AC / Heater Blower

jomo

 
Joined
Mar 18, 2007
Messages
108
Location
Dallas, TX
My fan was clean of debris. But the blades were filthy with grease and dirt. I ended using some tools from my gun cleaning kit to clean out the blades. Also, while I was in there I reached into the evaporator and cleaned out a bunch of nasty crap in there. Couldn't fit my had too far down, but far enough to get out the junk. And this is after I used the BG Frigi-Clean treatment on the evaporator the night before. I also sprayed some Lysol into the evaporator for good measure.
 
Joined
Jun 13, 2011
Messages
222
Location
Austin, TX
Imagine a big card in the bicycle spokes. Essentially what mine sounded like. In my 2002 UZJ-100, I removed the glove box door, released the cable keep, put the door on the passenger seat, then I took out my iPhone camera and switched the view to Front to act like my eyes under the dash since my head and body were not cooperating with the position. I located the power plug and easily pushed the release and the connector fell away. I took out my torx and battery operated drill and took out 3 combo torx/flat 1/2" screws. The fan readily dropped out. It looked like a mouse had built a nest as there was a 1" of nesting like material present like cotton candy around the inside of the drum fan. I pulled it out, blew out the few leaves reassembled and it sounds and runs perfectly. So, THANKS for the quick tip. Took about 30 minutes but that's because I couldn't find a decent mirror.
 
Joined
Feb 25, 2016
Messages
18
Location
NYC
Nice post. Started to hear a noise when my fan was on high a few month back so I haven't used it on high since. Got time today to check it out... Cant believe how dirty it was. Thanks for the pictures and walk through.

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Joined
Jul 21, 2015
Messages
1,269
Location
Bend, OR
My fan looked like these ones as well. On high speed it would shake the dash. Cleaning the evaporator and fan was one of the best things I've done and would recommend doing asap to anyone buying a cruiser.
 

flintknapper

SILVER Star
 
Joined
May 22, 2004
Messages
5,769
Location
Deep East Texas
OK...did this today. Did not find so much as a leaf in it. A little dusty but that was all.

Every once in awhile...my blower motor would make a squeaking sound on low speed (just for a moment).

So...figured I might as well have a look at it and see if there was any way to oil the motor bushings.

Took me about 30 minutes to get the thing out (I'm WAY too big to be cramming myself between the front seat and dash. Used a flashlight and a mirror to locate the screws. After getting it out and messing with the fan wheel...I determined that it was NOT going to come off without me breaking it.

So....I decided to drill a small inspection hole in it....just large enough to be able to see the motor shaft. Figured I could let drops of oil run down the shaft to the front bushing (no way to access the rear one).

That actually seemed to have worked. So far...no more squeaking/chirping noise on low speed. We will see how it does long term.

80 fan.jpg
 
Joined
Nov 1, 2009
Messages
938
Location
South Central PA
Are you guys seeing improved volume of air after the cleanout? I have two 80s, one and LX and the other a Cruiser that are the same years. The LX moves much more air with the blower on, the Cruiser I have to often put on high and the speed settings don't seem to change the volume much.
 

flintknapper

SILVER Star
 
Joined
May 22, 2004
Messages
5,769
Location
Deep East Texas
Are you guys seeing improved volume of air after the cleanout? I have two 80s, one and LX and the other a Cruiser that are the same years. The LX moves much more air with the blower on, the Cruiser I have to often put on high and the speed settings don't seem to change the volume much.
Since there was no debris in my fan or the duct-work....I can't comment on improvements. BUT the 80 series is generally known to have good air velocity at the vents (on high). Mine is excellent.

So...possibly yours might be improved upon with an inspection and cleaning.

IF you can't tell a difference between each speed setting...then likely you have a resistor or controller issue.

You might also check the voltage right at the blower motor as well.
 
Joined
Oct 11, 2014
Messages
2
Thanks for the write up! Have had this exact same issue come up in the past few weeks and this solved it 🍻
 
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