UK 2004 1.6 LX - hissing sound from front end after shutdown.

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Kevin Scott - 28 Jul 2006 03:04 GMT

Hi all, My focus has recently developed hissing sound when I turn it off.
I can only hear it from outside, the first time I heard it I thought I had a
punture as it comes from the front wheel area but on closer inspection I
found it was coming from a grey cylinder which looks like an elongated oil
filter located just behind the front bumper. There is a thin metal pipe
with a torques type screw attached to it, there is a tiny leak of what
appears to be water coming from here. Sorry for being a bit vague but it
was dark so I couldn't get a proper look.

Any Ideas as to what the problem is?

TIA

Kevin Scott.

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Rob B - 28 Jul 2006 03:50 GMT

That would be the Air conditioning Evaporator they Produce alot of
condensation when the car is running with the AC on so it drips alot of
water from it... the Hiss is normal even mine does it...

There should be 2 Pipes actually on it

> Hi all, My focus has recently developed hissing sound when I turn it off.
> I can only hear it from outside, the first time I heard it I thought I had
[quoted text clipped - 10 lines]
>
> Kevin Scott.

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Kevin Scott - 28 Jul 2006 04:51 GMT

thanks Rob, I've got a long jouney ahead of me on saturday and didn't much
fancy a trip the garage tomorrow to try to get it sorted.

> That would be the Air conditioning Evaporator they Produce alot of
> condensation when the car is running with the AC on so it drips alot of
[quoted text clipped - 16 lines]
>>
>> Kevin Scott.

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You Rang? - 28 Jul 2006 08:56 GMT

> That would be the Air conditioning Evaporator they Produce alot of
> condensation when the car is running with the AC on so it drips alot of
[quoted text clipped - 16 lines]
>>
>> Kevin Scott.

Yes mine does it too

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paul.groves@gmail.com - 28 Jul 2006 17:18 GMT

It's the aircon, yeah. My 05 LX TDCi does that too. But only when
it's been really hot outside. I was worried at first too, but my dad
just ordered and had delivered a brand new Focus Zetec automatic, and
his was the same..

> Hi all, My focus has recently developed hissing sound when I turn it off.
> I can only hear it from outside, the first time I heard it I thought I had a
[quoted text clipped - 10 lines]
>
> Kevin Scott.

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