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Air con high side connection

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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Ian B
Posts: 1
Joined: 27 April 2009
Year and Model: S40 SE Sport 2006
Location: Herts

Air con high side connection

Post by Ian B »

Hi Guys,

I/m looking for some help with my aircon for my SE Sport. The aircon suddenly stopped working. I found the low pressure switch tripped on low pressure and thus stopping the compressor clutch from energising. Luckily enough i am am fridge engineer by trade but dont do car aircon. Anyway i found the low side connection and sure enough no gas pressure, all gone.
I have put Nitrogeon into the system through the low side and that pressure has held for 3 days now.
My concern is, where was the leak, cos now its holding pressure, but to double check i need to know where the high side connection is and check the pressure at this point.
If the pressure this is good then i dont no how i've lost gas, unless it was let out at a garage!! Sorry to waffle.

MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Has thanked: 17 times
Been thanked: 35 times

Post by MadeInJapan »

Some Volvo's don't have a high side...the only way to deal with adding gas, etc. is to make sure the compressor is running. I'm not sure about your car- it's too new for me to have any data on it.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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