PART 3 Mazda 3 2006 clear step by step AC expansion valve replacement

[@bisfal]

very good video.thank you very much.

[@MahmoudAbido]

Thanks, my pleasure

[@mtnsports]

I was expecting to see you clean the tube between the condenser and the expansion valve....didn't you flush that? Admittedly that would be a challenge, but I thought you mentioned at the end of part 2 that you were planning to flush that tube also.

[@MahmoudAbido]

Thanks for your comment, You are right, I was planning to clean the pipe coming from the condenser going to the expansion valve. As you mentioned, it will be very challenging, especially you have to clean it in the opposite direction of the refregirant flow (from the expansion valve to the condenser). We don't have enough space to do this. If we think about it, we will find that we don't need to clean this pipe. Why? Because we are cleaning the pipes to remove any contamination. The refrigerant flow goes through the condenser before reaching to this pipe. The condenser has very, very small channels, so most probably, any contamination will stuck in the condenser. Thus, this pipe should be nice and clean. Do you agree with me?

[@victorcedano2724]

ESO SE HACE COMO PARTE LA LIMPIEZA DE LINEAS DEL SISTEMA DE AIRE, NO POR SEPARADO, NOES QUE NO SE PUEDA HACER PERO ES MAS COMPLICADO Y MENOS SEGURO HACERLO POR SEPARADO.

[@Devo1987]

So what does the expansion valve screw do do you know ?

[@coachtomsvolleyballchannel2286]

My daughter's 2009 Mazda3 has developed a refrigerant leak. It is a fairly rapid leak, I can charge it and it is down again the next day. It was rapid onset too, AC was working fine one day, gone the next. I bought a sniffer and am not detecting anything around the condenser or the upper lines. However, it does give a low level alarm at the interior ducts, so I am suspecting a leak at the evaporator core. Unfortunately that will entail pulling the dash. I am wondering if it would be worth it to check around the expansion valve first.

[@MahmoudAbido]

@coachtomsvolleyballchannel2286 Thanks for asking, Yes it is true if the leakage from the evaporator, you would need to remove the dashboard. I think it is hard to find a leakage in the expansion valve. But it is worth checking it before removing the dashboard. You may be able to check the evaporator leakage after removing the cabinet air filter. You will find it a little hard as there is very little space. I would recommend giving it a try before removing the dashboard as well. Please let me know if you have any questions. I will be happy to help.