I've got an 88 toyota pickup, but I figure the problem can occur in any of the years. The heater barely blows when the fan setting isn't on "high" and recently when I turn on the fan it makes a loud sound like something isn't working correctly. The sound goes away and the heater blows normally after 45 mph. Any ideas? I really need the heater to work without so much noise.

 

Take the motor and squirrel cage out and oil the motor shaft.

Clean the leaves and crud out of the heater plenum while you're in there.

 

Thanks for the information! I don't know where those are, but I guess that's what Google is for haha

 

I thought you said it was noisy.

Turn it on and follow your ears to the noise.

 

A guess would be behind the glovebox.

 

I found a pretty good video in case anybody stumbles across this thread wondering how to access the blower motor and squirrel cage.

 

Pretty hard to miss!!

 

UPDATE!

I got my heater working correctly now. It was full of leaves and grime. Also there was a piece of plastic about 1 inch in size that was probably what was causing the noise. Not sure where the plastic piece came from though as my squirrel cage was perfectly intact.

 

That's my video. Hope it helps people out. I have a few other Toyota truck videos up as well.

 

If you had a lot of leaves in the blower assembly, most likely you AC Evaporator is full of debris as well. I would also suggest pulling the windshield cowl and cleaning the debris out of there as well.

 

Great job on the videos. I will look them up add them in my threads. Great Job!!!

 

Thanks for making such great Toyota videos! I am a huge fan of your tutorials. I have considered doing repair videos like this one too despite how easy some tasks can be, because some people simply have no idea how to do things on their truck.