Heater Noise with Burning Smell (1 Viewer)

[y0t4]

It's been a long time since I've posted on here. I had a 87 4Runner back in the day that I dumbly replaced with a jeep wrangler...but now I'm back with an 80 series (1992) after i gave up on the weird jeep culture (no offense, well maybe). I've had it now for about 2 years and have been having issues with the heater and air conditioner since owning it. It's possibly related. Whenever I turn on the heater it works for a bit but if it is on longer than 45 minutes, a loud squealing noise starts and then there is a burning rubber smell. I did some searching around and I believe the heater blower motor needs to be replaced.

now with the cooling - it's never worked - the AC blows out slightly cooled air and eventually the squealing/burning rubber smells happens (another potential indicator that it is the heater blower motor). Now my questions are - is it possible that the the heater blower motor is impacting the cooling? Or is there potential that I need to replace other components in the AC? Also if you think that this might be something else than the heater blower motor, feel free to provide input there!

 

[Fj80oregon]

You blower motor should not affect A/c temps unless it’s not blowing. I would start with pulling your motor basket out they are usually pretty dirty after years of use. Maybe cleaning it up will help with it perform. Easy to take out 3 torx screws and a wiring harness. Under the glove box

 

[Fj80oregon]

Your A/C system is probably low on Freon. You need a set of gauges to properly diagnose. You may get lucky by using one of those cheep A/C recharge kits but that is not the right way to do it.