Ac clutch or something else? - Mazda3 Forums : The #1 Mazda 3 Forum
 
LinkBack Thread Tools
post #1 of 6 (permalink) Old 12-13-2018, 05:36 PM Thread Starter
Moped Rider
 
Join Date: Dec 2018
Location: Black Hills of South Dakota
Posts: 34
Ac clutch or something else?

https://youtu.be/RChyBo6aAXU

My car makes this same exact noise every once in a while. 96k on the car. 2008 mazda3 hatch. 2.3 5 speed. Not really dragging the engine down. If I an correct the compressor comes on when the defrost is engaged. Ac blows cold. Am I on the right track?
Xbeaus is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 12-16-2018, 12:29 AM
Grand Am Series
 
rickkari's Avatar
 
Join Date: Feb 2018
Location: Spring Hill, TN
Posts: 297
Garage
Quote:
Originally Posted by Xbeaus View Post
https://youtu.be/RChyBo6aAXU

My car makes this same exact noise every once in a while. 96k on the car. 2008 mazda3 hatch. 2.3 5 speed. Not really dragging the engine down. If I an correct the compressor comes on when the defrost is engaged. Ac blows cold. Am I on the right track?
Sounds more like internal compressor noise when the clutch is engaged and is turning the compressor. Not abnormal on the bottom mount MZ3 vehicles to a point from my knowledge as well as personal experience. My 3 did this excessively loudly. Installed a brand new compressor. It was much quieter, but still made a slight noise when engaged. A/C compressor does run in defrost mode to aid in defogging as moisture is removed from the air as it passes over the evaporator.

Jesus Saves
rickkari is offline  
post #3 of 6 (permalink) Old 12-18-2018, 10:31 AM Thread Starter
Moped Rider
 
Join Date: Dec 2018
Location: Black Hills of South Dakota
Posts: 34
Quote:
Originally Posted by rickkari View Post
Sounds more like internal compressor noise when the clutch is engaged and is turning the compressor. Not abnormal on the bottom mount MZ3 vehicles to a point from my knowledge as well as personal experience. My 3 did this excessively loudly. Installed a brand new compressor. It was much quieter, but still made a slight noise when engaged. A/C compressor does run in defrost mode to aid in defogging as moisture is removed from the air as it passes over the evaporator.
Thank you. That makes sense. It also looks like somebody was lazy and peeled back the plastic cover to look at it. Like it's own access hole. lol I saw where you can replace the clutch and coil without purging the system. Looks quite easy actually. I wonder if this would help? But - like you said if it's internal compressor noise then it looks like I would need a purge and fill after compressor install.
Xbeaus is offline  
Sponsored Links
Advertisement
 
post #4 of 6 (permalink) Old 12-20-2018, 03:32 PM
Le Mans: Prototype Class
 
Join Date: Jun 2012
Location: South Carolina
Posts: 1,029
The clutches aren't that bad in cost. Amazon has the best prices on them. Just know that you'll want to change your belts while you're at it, including the serpentine tensioner. And the A/C belt is a PAIN to get on without the little special tool. There's supposedly a "zip tie" trick to get the belt on, but I try as I might, I couldn't make it work. I tried for an hour with the zip ties until I broke down, went to the auto parts store, and bought the special tool. The belt slipped right on in 20 seconds with the tool.
theblooms is offline  
post #5 of 6 (permalink) Old 12-20-2018, 03:33 PM
Grand Am Series
 
Adam3324's Avatar
 
Join Date: Jan 2006
Location: Richmond, VA
Posts: 499
Garage
I second that idea of the compressor clutch might be going out. Mine did this and their is a kit or two on amazon/ebay etc to replace just the clutch/ magnet which should be a good cheap first step.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Adam3324 is offline  
post #6 of 6 (permalink) Old 12-21-2018, 10:48 AM Thread Starter
Moped Rider
 
Join Date: Dec 2018
Location: Black Hills of South Dakota
Posts: 34
Thank you for the input. I checked at O'Reilleys and you can actually borrow that tool from them. So - when it's time I am going to do that kit (amazon) and also the belts and the tensioner. I have been watching a lot of Youtube and checking out my car. Looks like I have a tear on an inner CV boot as well. All seems pretty easy so far. The motor mounts were very easy to do.
Xbeaus is offline  
Sponsored Links
Advertisement
 
Reply

  Mazda3 Forums : The #1 Mazda 3 Forum > Technical / Model / Performance > Powertrain 2004-2009 Mazda3

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mazda3 Forums : The #1 Mazda 3 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
replace clutch now? animescreen Mazda3 (Axela) 18 05-06-2019 01:17 PM
New Clutch developed shudder 2007mazda3 Powertrain 2004-2009 Mazda3 2 04-10-2018 01:01 PM
Clutch help from the performance guys rickkari Autocross, Track, and Dyno Results 4 04-05-2018 11:25 PM
Slave Cylinder Modification to Adjust Clutch Release Height rickkari Powertrain 2004-2009 Mazda3 6 03-16-2018 11:08 PM
Not going into gear after using clutch a few times furtula1 Powertrain 2004-2009 Mazda3 5 12-15-2016 04:25 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
8