Climate control unit losing vacuum ?

[Fletch_QLD]

Driving along, if I put the foot down a bit (say going up a hill or overtaking) I seem to lose a/c blower to the face.

I had a similar situation in a VS Calais - and it's the solenoid controller that sat under the stereo.

Has anyone been here with the VY ? Any tips would be appreciated!

 

[50LTRv8]

Here is a guide that I did for a VT, VY should be roughly the same I would think.

https://forums.justcommodores.com.au/threads/how-change-aircon-actuator-vt.148796

 

[Fletch_QLD]

Sweet - looks like a very similar unit to the one used in the vs - but in a more accessible position. Thanks for that.

 

[Fletch_QLD]

I finally got arouns to installing brand new actuator solenois control - no change

I have checked the one way valve on the vacuum line in the engine bay - what's next?

 

[ARATIC]

Hey mate I have a similar problem but is intermittant. From doing some searching, it may be the vacuum valve

Heres a pic of the ventilation system, may help



Also have a read through this post

http://forums.justcommodores.com.au...9191-vt-climate-control-vacuum-problem-2.html

 

[Fletch_QLD]

My check valve is ok - will check the line up to and including the tank - and look into the 'vacuum valve' (if I can find it) - but if it looks like being one of the three actuators being faulty, It probably goes into the too hard basket as it's not that big a problem (at this stage). Thanks for the links/infos

 

[H Bomb]

can anyone tell me where the engine check valve, vacumn tank and vacumn valve are in the VYII, everyone tells me that there is a black valve in the engine bay between the engine and the firewall but I can't find it, sorry to be a pain.

 

[Fletch_QLD]

The check valve is - as you say - between the engine and the firewall. It is half black, half white and has like a black 3mm (?) tube going out each end.

 

[ARATIC]

Vacuum tank is behind the glove box on the left, and I think the vacuum valve is behind the stereo or fan controls.

Have a good read through the thread in my above post everything you need to know is in there

 

[ron_finlay]

I have got round round the problem in my VY Clubby by adding a VL vacuum tank & connecting it up to the hose running in front of the bulkhead via a T-piece. Took 10 minutes, cost 20 bucks in total & fault has disappeared!!