Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S80 '06-'16 / V70 & XC70 '07-'16 General

Notices

S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Air con issues

Views : 1030

Replies : 19

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Jun 27th, 2020, 18:17   #11
Keefie
Member
 

Last Online: Dec 29th, 2023 21:13
Join Date: Mar 2008
Location: Cambridge
Default

V70Zig, did you measure the evaporator temperature during your tests ?
__________________
2012 V70 D3 SE Lux Magic Blue
2005 XC70 D5 SE Lux Willow Green
Keefie is offline   Reply With Quote
Old Jun 27th, 2020, 23:39   #12
lotuscorty
Junior Member
 

Last Online: Jun 28th, 2020 15:43
Join Date: Apr 2006
Location: Glasgow
Default

Hi, I think I stated before that my evaporator temp was above my in car temp, which would suggest to me that refrigerant was not circulating?? Hence I don't know if either the pump is faulty or I have some sort of blockage somewhere?
Thanks for the help.
lotuscorty is offline   Reply With Quote
Old Jun 28th, 2020, 00:45   #13
Kev0607
Premier Member
 

Last Online: Today 13:33
Join Date: Apr 2019
Location: Manchester
Default

Quote:
Originally Posted by lotuscorty View Post
Regas was done by a local chap. Although at a couple of points the compressor seemed to "blow off" some pressure? Hasn't done it since, is there any possibility of a blockage somewhere? Never experienced it but just wondered if possible? Thanks
The pressure "blow off" doesn't sound normal. Maybe he added too much refrigerant to the system, or there's a leak? The old refrigerant should be removed/evacuated by a machine and the whole air con system should be left under vacuum for a while to test for leaks before being re-gassed, if there isn't a leak of course. The refrigerant itself is weighed, as adding too much can damage the compressor itself. There's a sticker in the engine bay that specifies the correct weight of refrigerant to add to the car.

You're well within your right to return your car for the "local chap" to have a look at it again. Although, being honest, bringing your car to be re-gassed & it coming out more or less the same as it was wouldn't inspire me with much confidence in returning to him. You need to bring your car to someone that knows what they're doing & is qualified to work on a/c systems - The "local chap" sounds as if he doesn't to me. If the job was done properly, you're air con would be cold, or at the very least, he would have identified the reason why it wasn't & advised you of any repairs that may be required before he could do a re-gas.
__________________
2007 (P3) Volvo S80 SE 2.4D (163bhp) - 109,000 miles. Black exterior with cream leather interior.

Last edited by Kev0607; Jun 28th, 2020 at 01:02.
Kev0607 is offline   Reply With Quote
Old Jun 28th, 2020, 01:42   #14
lotuscorty
Junior Member
 

Last Online: Jun 28th, 2020 15:43
Join Date: Apr 2006
Location: Glasgow
Default

I appreciate your concerns. The regas was done by someone who knows what they are doing and was properly vac tested, etc before recharging at the specified amount. I am looking for advice on as to why my air con system is malfunctioning, when all appears to be fine diagnostically.
I have already questioned the pumps credentials and hope that someone who has possibly experienced similar issues could point me in the direction of a solution.
Could the condenser or evaporator have a blockage??
lotuscorty is offline   Reply With Quote
Old Jun 28th, 2020, 12:34   #15
V70Zig
Master Member
 

Last Online: Feb 28th, 2024 17:13
Join Date: Sep 2012
Location: Loughborough
Default

Quote:
Originally Posted by Keefie View Post
V70Zig, did you measure the evaporator temperature during your tests ?
No I didn't......so today pre-start pressure 4950 hPa evap temp 18.8

After starting evap temp begins to drop and pressure rises. Noted the lowest temp at 2.8 and the highest pressure was over 11000 hPa.
__________________
2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k

Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP.
V70Zig is offline   Reply With Quote
Old Jun 28th, 2020, 12:43   #16
V70Zig
Master Member
 

Last Online: Feb 28th, 2024 17:13
Join Date: Sep 2012
Location: Loughborough
Default

Quote:
Originally Posted by lotuscorty View Post
I appreciate your concerns. The regas was done by someone who knows what they are doing and was properly vac tested, etc before recharging at the specified amount. I am looking for advice on as to why my air con system is malfunctioning, when all appears to be fine diagnostically.
I have already questioned the pumps credentials and hope that someone who has possibly experienced similar issues could point me in the direction of a solution.
Could the condenser or evaporator have a blockage??
What pressure reading do you get before starting ?

Can't help with blockages as never experienced one....faulty pressure sensor then I can, just had mine replaced. Worth monitoring the pressure over a few journeys.
__________________
2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k

Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP.
V70Zig is offline   Reply With Quote
Old Jun 28th, 2020, 13:01   #17
lotuscorty
Junior Member
 

Last Online: Jun 28th, 2020 15:43
Join Date: Apr 2006
Location: Glasgow
Default

Pressure reads low 2000's and drops when compressor is activated. Pressure sensor has been changed as a precaution, and reads the same as previous. I thought maybe evaporator sensor could be faulty but it consistently reads above in car temp. I can only assume the pump is faulty and I may have some other issue(blockage)?? None of which shows up. Unfortunately looks like an expensive replacement looming.
Thanks for all the info.
lotuscorty is offline   Reply With Quote
Old Jun 28th, 2020, 15:06   #18
V70Zig
Master Member
 

Last Online: Feb 28th, 2024 17:13
Join Date: Sep 2012
Location: Loughborough
Default

I guess that if you are constantly getting the same readings.....and as you've already changed the sensor and get the same.....the problem does lie elsewhere. What does your man think ?

Have a look here - https://www.youtube.com/watch?v=1sZ3UfBMu-I

Good luck, sorry I cannot be of more help.
__________________
2008 V70 SE D5 Auto 185 ...now 205 Volvo Polestar......188k

Passed away - 1999 V70 2.5tdi Auto 340632 miles, RIP.
V70Zig is offline   Reply With Quote
Old Jun 28th, 2020, 15:43   #19
lotuscorty
Junior Member
 

Last Online: Jun 28th, 2020 15:43
Join Date: Apr 2006
Location: Glasgow
Default

Thanks again.
Good informative video, gives you an insight.
Looks like I may need a compressor, although according to the cars history it has been replaced before, hence my quest to see if there could be a hidden problem.
Will update when I get a compressor.
Thanks.
lotuscorty is offline   Reply With Quote
Old Jun 28th, 2020, 22:25   #20
Kev0607
Premier Member
 

Last Online: Today 13:33
Join Date: Apr 2019
Location: Manchester
Default

Quote:
Originally Posted by lotuscorty View Post
I appreciate your concerns. The regas was done by someone who knows what they are doing and was properly vac tested, etc before recharging at the specified amount. I am looking for advice on as to why my air con system is malfunctioning, when all appears to be fine diagnostically.
I have already questioned the pumps credentials and hope that someone who has possibly experienced similar issues could point me in the direction of a solution.
Could the condenser or evaporator have a blockage??
Okay, so he knows what he's doing... That's a start.

You could bring your car to him for a second opinion, before shelling out for new part(s)? I imagine he comes across things like this regularly being in the a/c business.
__________________
2007 (P3) Volvo S80 SE 2.4D (163bhp) - 109,000 miles. Black exterior with cream leather interior.
Kev0607 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 14:33.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.