Well THAT didn’t work...

[03yllwguy]

I tried filling it but it pissed back out the valve.

This was my culprit that I just fixed.

I would change out Schrader valves in your high and low side ports ($5 each), orifice tube and accumulator and you should be set for a fill.


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[SVTdreamin04]

Mine clicks on for about 1 second, and then clicks off again. Id like to figure it out also.

@98 svt, you need to throw a set of gauges on it and let us know what the high side is doing as well.


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[SVTdreamin04]

This was my culprit that I just fixed.

I would change out Schrader valves in your high and low side ports ($5 each), orifice tube and accumulator and you should be set for a fill.


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Also, when you change anything out like this, it is a good idea to buy a bottle of refrigerant oil to lubricate the o rings with.


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[98 svt]

Where can I but the valves and at? Pretty much any auto parts store? Same with refrigerant oil, parts store?
Sorry if I'm highjacking your thread, I can start a new one if its better for you.

 

[SVTdreamin04]

Where can I but the valves and at? Pretty much any auto parts store? Same with refrigerant oil, parts store?
Sorry if I'm highjacking your thread, I can start a new one if its better for you.

Yes, at a parts store. I think you need PAG 46 oil. If you’re removing the old schraider valves, you will be opening the up the system, so you will have to pull a vacuum on the system as well.


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[98 svt]

Yes, at a parts store. I think you need PAG 46 oil. If you’re removing the old schraider valves, you will be opening the up the system, so you will have to pull a vacuum on the system as well.


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There's no pressure in the system right now at all. Do I still need to pull vacuum?

 

[SVTdreamin04]

There's no pressure in the system right now at all. Do I still need to pull vacuum?

Yup. If you pull the schrader valves, you will introduce air and moisture into the system. Most places like an autozone or oreily auto parts have vacuum pumps you can rent. You will need a set of gauges too.


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[SVTdreamin04]

Any time you open the system up, you have to pull a vacuum. Others may argue, but if air is trapped in the system, that means less room from refrigerant and moisture in the system as well.


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[03yllwguy]

Where can I but the valves and at? Pretty much any auto parts store? Same with refrigerant oil, parts store?
Sorry if I'm highjacking your thread, I can start a new one if its better for you.

As others stated, you can get them anywhere, just make sure to get the tool for doing so.

Here is a link to where I got mine: https://www.oreillyauto.com/detail/...28/2003/ford/mustang?q=Ac+service+valve&pos=0

Here is a link to the accumulator you should replace since the system is open: https://www.oreillyauto.com/detail/...4600330/2003/ford/mustang?q=Accumulator&pos=0

And the orifice tube you should do at the same time: https://www.oreillyauto.com/detail/...96/2003/ford/mustang?q=a/c+orifice+tube&pos=0


I would rent a vacuum and AC Manifold gauge set and pull vacuum for an hour, and let the vacuum rest for at least 30 min to ensure no other leaks.

When you fill it, use the manifold gauge set put be sure to purge the line first per can since ours take almost three cans.


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[SVTdreamin04]

As others stated, you can get them anywhere, just make sure to get the tool for doing so.

Here is a link to where I got mine: https://www.oreillyauto.com/detail/...28/2003/ford/mustang?q=Ac+service+valve&pos=0

Here is a link to the accumulator you should replace since the system is open: https://www.oreillyauto.com/detail/...4600330/2003/ford/mustang?q=Accumulator&pos=0

And the orifice tube you should do at the same time: https://www.oreillyauto.com/detail/...96/2003/ford/mustang?q=a/c+orifice+tube&pos=0


I would rent a vacuum and AC Manifold gauge set and pull vacuum for an hour, and let the vacuum rest for at least 30 min to ensure no other leaks.

When you fill it, use the manifold gauge set put be sure to purge the line first per can since ours take almost three cans.


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And add refrigerant on the high side when under vacuum and compressor NOT running so not to risk putting liquid to the compressor.


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[94 Cobra R]

Reviving this. Did any of y’all figure out the issues??