Hissing from air con

[chrisdoesitbetter]

when i turn on or off my air con hisses like air is escaping and last for about 20 seconds... is this normal??

[DannyboyDS]

do you have a digital climate control? and is the sounds comming fromt he dash, or the engine bay?

MY vacume solenoid box hisses when I turn the car on/off, it is in the dash and only on models with the digital climate control.

[hako]

Some aircons will make this noise ....a kind of bubbling/hissing sound. I wouldn't worry too much about it.

[Draimond]

what car with what set up? VS executive does that, especialy when u turn the dial halfway between selections, it's got 6¿ rubber tubes that plug in behind it. wonder if it make noise when it was first build...

[chrisdoesitbetter]

non climate control and it does it when i turn from cold to hot and vice versa and on start up... still seems to keep cool so should be ok

[Brett_jjj]

Mine hisses when I turn it off.I had it regassed last year,and it works great,so it must be fairly normal for them to do it.

[fkford]

mine hisses when i change setting but it also hisses when i accelerate and release my foot off the accelerator.. blow off valve lol jkz apparently its just a vacuum line thats crossed over...doesnt do anyhting wrong.

[holdendude]

mine hisses when i change setting but it also hisses when i accelerate and release my foot off the accelerator.. blow off valve lol jkz apparently its just a vacuum line thats crossed over...doesnt do anyhting wrong.

Mine does pretty much the same, it's like i got a turbo spooling as i accelerate! haha, it's a good laugh

[DannyboyDS]

ohhhhhhhhhhhh, its the vacume getting released isn't it?

When you change the setting vacume is released from the origional setting and applied to the new one yeah? isn't that how it works?