Question about Mazda 626

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I have a 1998 Mazda 626 2.0 liter. Cannot get the AC belt to stop squealing. Replaced both belts, The A/C compressor has been replaced, and the A/C belt is as tight as you can get it. The belt squeals when you crank the car and when you first cut the air on.

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  • Killazashock Nov 20, 2008

    I have the same problem. I have a 1998 Mazda Protege and everytime I put it in gear it squeals non stop. I put a new altinator with new belts but it still didn't solve the problem. Yet everytime I put a new belts on it will fix the problem for a week or so but slowly gets worse after time. This is my 8th belt I put on and I need help.

  • Killazashock Nov 20, 2008

    I also have the majority of the problem when my AC is on too.

  • jesstackett Jan 29, 2009

    I have the same problem and sometimes it doesn't even have to be in gear to squeal. I have noticed that it tends to break more and squeal more often when its cold outside. I have replaced my belt several times and my mechanic told me the last time I had it replaced that I needed a new alternator. Now after reading some of these on the internet, that doesn't seem to be the problem. Alternators for these cars are not cheap. I think I'll look more before I make that kind of investment.

  • sdfrick Feb 15, 2009

    Same issue here but with a 1992 Mazda 626. As soon as I hit the AC button during or after starting the car, it squeels really loudly. The AC belt itself is tight - you can do a test for looseness by pushing down on the belt with your finger, and if you can press down an inch or more, then it is too loose. Unfortunately, my belt is not loose, so I still am unable to troubleshoot any further.

    The squeel sound comes from the belt slipping against its tracks i.e. grip being lost. I've read online that you can buy some type of substance to put on belts to help with grip issues, so I will be looking into that first before doing anything costly.

  • kjnboy Mar 23, 2009

    I had a similar problem with my '00 626 where the belt would squeal during the first five minutes of being started. The root cause of my problem was the overflow tank for the radiator was leaking at the bottom. This was spraying coolant on my belt causing it to squeal. Replaced the overflow tank and then the belt. Haven't had a problem since.

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SOURCE: Squealing

did you try belt dresser? (comes in a spray can)

Posted on Sep 17, 2008

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Does your car have air conditioning.? Most cars use the A/C compressor to dry the air for the defrost. It will also come on for a short time when you first start the car. With the engine running after the squeel has stopped , try turning the A/C on , If the squeel starts again , then I would think your A/C compressor is seized. Also . are you sure the 2 new belts are tight enough?

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did you try belt dresser? (comes in a spray can)

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