Automotive Air Conditioning Information Forum (Archives)

Provided by

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

2005 Mazda 3 heating and a/c problems

rewing111 on Mon April 05, 2010 3:00 AM User is offline

Year: 2005
Make: mazda
Model: 3
Engine Size: 2.3

This winter i started hearing a bad rubbing noise coming from the heater blower in my car. I took it out and found the squirrel cage was warped so i assume the blower motor got too hot and caused it. Two months later i was letting the car warm up and the cabin was filled with smoke. I soon found from inspecting the a/c compressor that the pulley melted a hole in the splash gaurd around it ( produced the smoke in the car from it being set on fresh i assume). Inspected it further and when i turn the a/c on the magnetic clutch locks up and shoots a spark. I can turn the clutch by hand but as soon as the a/c is turned on it locks up. I have a couple questions. Does that mean since i can turn the clutch freely that the compressor isn't locked up? And could the blower getting hot and the a/c clutch possibly burning up be related by a bad module that they share? I'm obviously no tech, i just dont want to just start replacing this stuff if an electrical problem could cause it to happen again. Any advice is helpful thanks.

mk378 on Mon April 05, 2010 2:07 PM User is offline

Can you turn the front plate freely, or just the pulley? The front plate drives the actual compressor mechanism. When the clutch pulls in, the front plate sticks to the pulley and both turn together. It sounds like you have a seized compressor. That would not have anything to do with the interior fan.

rewing111 on Tue April 06, 2010 2:57 AM User is offline

Thanks for your reply. I can turn the front plate freely without turning the pulley. Thats whats got me confused. Sometimes it grabs a little when im turning it but all in all it still turns. When i turn the car on and hit the a/c button it instantly shoots a spark and locks up. I read something about a blower motor and a/c clutch module. Didnt know if they were related somehow.

TRB on Tue April 06, 2010 5:00 PM User is offlineView users profile

Pulley spins freely until you engaged the clutch. Good bet the compressor is toast or extremely overcharged.


When considering your next auto A/C purchase, please consider the site that supports you:

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.