First Gen heater fan removal

[ld50]

Had to take my heater fan /AKA Blower out because of a funny noise from it, Here is how to!

91 - 94 Explorer`s heater fans can be found on the passenger side at firewall.

 

[ld50]

In my case, I had to take my conical filter out, and then get the MAF housing out of the way.
I still have the bottom of my stock air-box in place, and it is held by one bolt on the engine side of it, the other side has a couple of knobs which fit into a pair of grommets, if you pull it out be aware of the lower side of the intake tube, which has a vacuum valve connection to undo.
I don't have the bottom of my intake tube hooked to anything anymore, but there is a flex hose hanging off the bottom of it which may have hooked up to something at one time, I can`t recall, it`s been years since I went with the conical. If you wanted you can separate the intake tube from the box, where it enters.

 

[ld50]

The fan motor housing has an electrical connector on it which needs to be undone.

 

[ld50]

Next there is a watertight vent off the other side of the motor housing which is essentially a rubber hose with a loop of rubber which holds it tight into the vent hole by wrapping, elastic band-style around the housing, it needs to come off..

 

[ld50]

If you have Air conditioning, you will want to undo the electrical connector which enters the housing next to the heater fan..

 

[ld50]

Now that room has been made, you need to undo three 5/16th bolts to get the motor and fan assembly out.
Then you can pull it out.

 

[ld50]

My fan had started making a rubbing kind of out of balance sound. I found a bunch of insulation in it. I suspect a mouse, although I saw no mice crap, and I can't quite figure where the insulation came from. Works fine again now.
It has made this noise since camping on a 4x4 trail, so it is quite possible that I picked up a mouse at that time.

 

[boggs1227]

hehehe...... i had a honda xr 100r when i was kid and one day the bike died ..took off the cover for the air filter and out fell 3 dead baby mice and a wad of stuff !