VX V6 Air Con Issue - Annoying whine & no cold air

[pepstar87]

I have a VX V6 executive and recently had the air con regassed in November as I thought that was the issue initially (not blowing air and it was hot)

Quickly found out the fan resister had shit itself so I replaced that and it was working a treat, blowing cold air no issues.

About 2-3 weeks later, when I turned the air con on one day there was an annoying whine coming from the vents, and there was no cold air coming out. This whine is only present when the air con is turned on, and stops once turned off.

I've done a bit of searching and read it could be the compressor? Is this a DIY replacement? or could it be the bearings or pulley?

Just want to get this sorted, sick of driving down the freeway to work in a sweatbox.

Thanks guys

[m1lky]

Girlfriends e46 did this. Regassed and died the gas, 2 weeks later started making the noise out of the vents and stopped working again.

Was looking on the weekend and there's a slow leak on the condenser. I think the noise is the compressor struggling as the gas starts to get low.

[pepstar87]

Re: VX V6 Air Con Issue - Annnoying Whine & No Cold Air
I just checked it on hot as I hadn't bothered, it works fine on hot you can NOTICEABLY tell that it's heating. However when I switch back to cold it goes back to a warm type air, definitely no chill in it at all as expected with air con.

I should have mentioned when I replaced the resistor I also replaced the AC fan under the dash.

What's the likely cause with these symptoms?

[m1lky]

Is the ac system still pressurized?

[pepstar87]

How do you mean? I'm sure it is. It blows air still..

[Callum14]

How do you mean? I'm sure it is. It blows air still..

He's talking about the aircon gas in the condenser, is it pressurised?

I'd say no, best bet would be to go to a mechanic to take a look for leaks and gas it up for you again.

[m1lky]

Yeah if it's not. Get it gassed and dyed then find the leak. The one in my missus's car makes that noise as the gas gets low. Then ac stops working all together and the noise goes away. It did this, we gassed and dyed it then 2 weeks later it did it again (very small leak)

Hers leaks from the condenser. Yours could leak from the compressor, condenser, evaporator (hopefully not), the drier or any of the lines.

Will let you know if the sound returns in hers once she forks out for a condenser. Luckily a friend of mine can get the ac gassed for a box of Heineken.

[MR_VX]

Just make sure you get the dye put in when you get it re-gassed, easiest way to find the leak

[VTS5]

Oohh yeah.....Here is the proof :-)