Question about 2000 Mazda 626

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Hi i have a 2000 mazda 626 the a/c has stopped working the light is on but no cold air comes out any ideas ??

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First note if your ac compressor is working, if not check your fuses or ac relay. Hope this helps

Posted on Jul 01, 2009

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i would suggest replacing the T.X valve, as that way you wont have to de commission the system again and repair the system and then regas, as this can prove costly. In relation to the guages normally the Low side (blue)on the guage will read between 8-10 o'clock approxiamately, and the high side will read between 11.30 and 13.00 approxiamately, now when if the TX valve is blocked your LOW side will back up and read much higher, in the area of 11.30 and 13.00 approx or even higher and your high side as high or potentially higher, basically the scales will read excessive levels on both sides.
As the Gas is poisonous (cancerous) you will need to have this properly degassed and recovered, with the correct equipment, then while the repair is being carried out ensure that all pipe openings are sealed, as the reciever drier will require replacement also if exposed to atmosphere for any longer than 5-10 minutes, as it will become internally damaged, in addition to this any exposed "O-rings" will have to be replaced and new seals pre-lubed with denso-8 air con oil to ensure a correct vacuum seal when the vacuum evacuation process is carried out.
Then once all sealed all atmosprhere will have to be sucked out so that you have a vacuum, this is where the guages come in handy, then if it holds solid vacuum on both guages for approxiamately 10 mins with the evacuator switched off all is ok, is not then you will need to investigate for any possible leaks, if all ok regas with the recommended gas amount and all should be good.


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all the best

Posted on Jun 04, 2009


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