Sound from compressor

Tiny
GULZAR ALI
  • MEMBER
  • 2001 MAZDA 626
  • AUTOMATIC
  • 300,000 MILES
When I turn on AC sound comes form compressor when I am at stop position. While moving it does not come. But it will start as soon as I stop someone told me that it is sound of compressor and need to replace it. What should I do? Where can I find in UAE?
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Thursday, May 18th, 2017 AT 4:47 AM

7 Replies

Tiny
KEN
  • ADMIN
Hello,

Yes it sounds like the compressor is going bad. Here is a guide that will show you how to replace the compressor which isn't too bad. You can get a new compressor from Amazon.

https://www.amazon.com/gp/product/B00K35ZCEG/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B00K35ZCEG&linkId=ec1624390129017ef721d8bf06d5372c

Here is the guides.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

and

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Please let us know what you find ;)

Cheers, Ken
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Thursday, May 18th, 2017 AT 6:06 PM
Tiny
PHEBBLER
  • MEMBER
  • 2002 MAZDA 626
I just recetly bought this car. I live in Alabama so even in Feburary soometime I need to run the a/c. The problem is that when I turn on the a/c switch on the climate control panel, the compressor turn on for 2 or 3 seconds and then cycles off then about 6 seconds later it turns on for 2 or 3 seconds and cuts off. This will repeat for as long as the a/c is on. During the on cycle it gets cold and actually if you are driving a long distance at highway speed it keep sthe interior cool.
I figured that it was a little low on freon so I bought one of those top off cans with the guage and it says that the freon is full (green zone). Could a faulty low pressure switch cause this problem? Does my vehicle have a low pressure switch? (I have inquired at a number of local part shops and no one shows a low pressure switch for my car.

Any comments would be appreciated.
Philip Hebbler
Fayette, Alabama
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)
Tiny
COSMO
  • MEMBER
Have you tried your local Mazda Dealer?

Cosmo. Mazda TEch
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)
Tiny
POESR
  • MEMBER
  • 1999 MAZDA 626
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 136,000 MILES
Air Conditioning problem
1999 Mazda 626 4 cyl Two Wheel Drive Automatic 136000 miles

I have checked the charge on the system and it is within the specified limits. I think I may have a problem with the low pressure switch. Can you tell me where it is located and how to test and/or repair it?
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)
Tiny
ATKAPARKING
  • MEMBER
I don't have the specific information on the location of the low pressure switch-it should be a two wire switch located close to the dryer or condensor, in the front of the car. The wires will be pretty hefty. Also check the air gap between the a/c clutch and compressor--too great a gap will also give you the symptom you are describing. Maybe someone else on this forum will have the specs for testing switch and air gap--my mitchell manuals are in the mail as we speak, so I don't have them in front of me. As an alternative, you can sign up to all data or mitchell on demand, a month's or even a year's subscription for your specific car is as low as 20 bucks. Lots of good info and all the specs, far superior to anything except the factory manual. Good luck
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)
Tiny
MIKEQ
  • MEMBER
  • 1991 MAZDA 626
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 110 MILES
AC compressor will only run on 2 of the 4 Slider switch positions. The fan will only run on the other 2 of 4 switch positions. The AC aand fan will not run together on any of the positions.

I do not know if or were the fan module/ resistors are located. This fault occurred after a mechanic installed a replacement alternator.
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)
Tiny
WRENCHTECH
  • EXPERT
Sounds like a bad blower resister. It's located right near the blower motor under the dash on the passenger side.
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Thursday, May 18th, 2017 AT 6:07 PM (Merged)

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