A/C Low Pressure Port Location '08 XC70
#1
A/C Low Pressure Port Location '08 XC70
I have searched the forums and the web and have had zero luck in tracking down correct information on where the low pressure port is located on my 2008 XC70, i am posting hoping I might get some more recent experinces and info from folks here.
I have read that it may be under the power steering and radiator fluid overflow, so I pulled both of those out, no luck. I have tried to follow the larger diameter ac tube from the compressor to the firewall and am just not seeing it.
Anyone have any info on where it may be on a 2008 xc70? I really don't want to take it to the shop until I can get a reading on the pressure to know if it is as simple as more refrigerant is needed.
Thanks!
2008 XC70 3.2
Roseburg, Oregon
I have read that it may be under the power steering and radiator fluid overflow, so I pulled both of those out, no luck. I have tried to follow the larger diameter ac tube from the compressor to the firewall and am just not seeing it.
Anyone have any info on where it may be on a 2008 xc70? I really don't want to take it to the shop until I can get a reading on the pressure to know if it is as simple as more refrigerant is needed.
Thanks!
2008 XC70 3.2
Roseburg, Oregon
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Annette2023 (04-28-2023)
#3
#4
Photo Please
Hi.
I have the same 2008 Volvo XC70. I removed the cowl cover to look for the low pressure service valve, but no luck. Can you post a photo of exactly where this is found?
I've traced the larger diameter hose unsuccessfully from the compressor to the firewall. I could sure use a photo or two to help me in the right area.
Thanks.
I have the same 2008 Volvo XC70. I removed the cowl cover to look for the low pressure service valve, but no luck. Can you post a photo of exactly where this is found?
I've traced the larger diameter hose unsuccessfully from the compressor to the firewall. I could sure use a photo or two to help me in the right area.
Thanks.
#5
Hi.
I have the same 2008 Volvo XC70. I removed the cowl cover to look for the low pressure service valve, but no luck. Can you post a photo of exactly where this is found?
I've traced the larger diameter hose unsuccessfully from the compressor to the firewall. I could sure use a photo or two to help me in the right area.
Thanks.
I have the same 2008 Volvo XC70. I removed the cowl cover to look for the low pressure service valve, but no luck. Can you post a photo of exactly where this is found?
I've traced the larger diameter hose unsuccessfully from the compressor to the firewall. I could sure use a photo or two to help me in the right area.
Thanks.
As soon as I lifted the windshield wiper cowling from the passenger side the low pressure valve was right there. No more than 10" in from the fender toward the center of the car. Hope you find it, although it turned out that my compressor was bad so had to replace it. Waa not as wxpensive as I thought it wpuld be, $850
#7
In case this helps anyone that comes across this thread. The key to finding the low pressure port is to remove the plastic cover that is directly over the firewall. This wasn't too obvious to me.
It's the cowling that covers the windshield wiper motors. It's held in place by 4 or 5 autobody clips. On the XC70, you need to remove the rubber weather strip that covers the battery cover, and the cowling and runs the full width of the engine compartment. With the weather strip removed, you can pry up the autobody clips (carefully).
Then you can access the low pressure port directly in front of the passenger compartment (under the plastic cover). The photo shows the hose connected to the
This next photo shows the cowling lifted up with the hose connected.
It's the cowling that covers the windshield wiper motors. It's held in place by 4 or 5 autobody clips. On the XC70, you need to remove the rubber weather strip that covers the battery cover, and the cowling and runs the full width of the engine compartment. With the weather strip removed, you can pry up the autobody clips (carefully).
Then you can access the low pressure port directly in front of the passenger compartment (under the plastic cover). The photo shows the hose connected to the
This next photo shows the cowling lifted up with the hose connected.
#10
#11
PS not posting this to be a jerk. Just saying.
#12
Not sure about the model changes in the US, as I'm from The Netherlands. But I have a 2008 XC70 5 cil. diesel, that's likely the same model. The P3 Volvo.
I've been looking for this pressure switch, but I can only find a pressure sensor (3-wire). In Vida I see that this sensor measures the high pressure value (if I unplug it, the pressure value in Vida drops to 0), it does not simply switch above or below a certain pressure. Could it be that my model does not use a pressure switch, but uses the measured pressure to determine if the pressure is correct?
The sensor I found is position 26 in the image below of the 'delivery line'. The part number is 31292004
In my case the pressure it shows around 2000 hPa, which seems rather high for the outside temperature of around 75°F (24°C). And I see that the AC pump is not switched on, although I am able to switch it on manually in Vida (so the electrics, and clutch are ok).
I've been looking for this pressure switch, but I can only find a pressure sensor (3-wire). In Vida I see that this sensor measures the high pressure value (if I unplug it, the pressure value in Vida drops to 0), it does not simply switch above or below a certain pressure. Could it be that my model does not use a pressure switch, but uses the measured pressure to determine if the pressure is correct?
The sensor I found is position 26 in the image below of the 'delivery line'. The part number is 31292004
In my case the pressure it shows around 2000 hPa, which seems rather high for the outside temperature of around 75°F (24°C). And I see that the AC pump is not switched on, although I am able to switch it on manually in Vida (so the electrics, and clutch are ok).
Last edited by Hen3; 06-28-2021 at 04:29 PM.
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