Well earlier this week I was warming up the Bronco for work. I kicked the heater on high, when all the sudden LOTS of smoke filled the cabin of the truck. It smelled like burning leaves and really scared the crap out of me. I turned the truck off and opened the doors to air it out (I was about two seconds from calling the fire department), luckily it just smoked some leaves and didn't catch fire. I logged on here and searched. In no time I was at Steve83's supermotors page looking at the culprit (Thanks Steve!). This is old hat to alot of you veterans, but this is my third fsb and I never had this crap happen before. The problem is leaves and small twigs fall through the cowl vent and create a tender box in the hvac system. When the leaves build up on the resister next to the blower motor, they can catch FIRE off the heat of the resister. So here's a little how to that anyone can do:
First remove your blower motor, you'll need a 5/16 socket to loosen the four screws, and it will easily pop out.
Once the blower is out of the way, you'll be able to scoop/vacuum out all the debris. Reach your arm all the way down the inner fender to get all the crap out, just try to get your hand in every nook and cranny the leaves could've got into.
This is all the crap that came out of mine, more than I ever imagined was in there.
Next, use your 5/16 to remove the resister (The red thing) so you can clean it real good
Here's how mine looked when it came out, FULL of dry, flammable leaves!
Here's how it's supposed to look if you don't want to burn your Bronk to the ground
Re-install the resister, and hook the two plugs back in.
Re-install the blower motor and your done!
Since I bought this truck the a/c and heat barely came out the vents, now it blows good and strong.
Now pour yourself a glass of wine that you bought with all the money you saved by not burning your rig to the ground