A/C Doesn't Work For Long When Hot

Puffster · Jun 27th, 2018, 15:16

So, get in the hot car, start her up, cold air starts coming out, drive off and then it slowly turns warm air

Had her gassed as that's normally the sign and it was still cold to start with, 300m down the road and its warm again

Outside temp was over 25C

Next day drove 500 miles with an o/side temp of max 22C and it was cold as anything.

Now I did try and start up outside my house and sit there for a wee while and sure enough, after about a minute I heard a "clunk" from somewhere and then the warm air started again.

Anyone any ideas?

jonnyf90 · Jun 27th, 2018, 15:40

Air Con condenser clutch?
My 1996 960 has a very audible "clunk" when the clutch engages

Cheers

Model flyer · Jun 27th, 2018, 18:52

Quote:

Originally Posted by jonnyf90

Air Con condenser clutch?
My 1996 960 has a very audible "clunk" when the clutch engages

Cheers

Me thinks you mean the compressor clutch ?

cheshired5 · Jun 27th, 2018, 19:45

If the compressor clutch gap is the problem as it was for me, I fixed it with this simple and free solution.

T5R92011 · Jun 27th, 2018, 22:38

Also, if it's been over filled (ie pressure is too high) it will work for a bit and then stop.

green van man · Jun 28th, 2018, 06:51

Quote:

Originally Posted by T5R92011

Also, if it's been over filled (ie pressure is too high) it will work for a bit and then stop.

Which is why I take mine to the dealers where it is emptied then refilled with correct amount.
The DIY kits can work but it's hit and miss.

Paul.

Jun 27th, 2018, 15:16	#1
Puffster Member Last Online: Apr 26th, 2024 12:21 Join Date: Feb 2012 Location: Carmarthenshire	A/C Doesn't Work For Long When Hot So, get in the hot car, start her up, cold air starts coming out, drive off and then it slowly turns warm air Had her gassed as that's normally the sign and it was still cold to start with, 300m down the road and its warm again Outside temp was over 25C Next day drove 500 miles with an o/side temp of max 22C and it was cold as anything. Now I did try and start up outside my house and sit there for a wee while and sure enough, after about a minute I heard a "clunk" from somewhere and then the warm air started again. Anyone any ideas? __________________ Blue 2011 Volvo XC70 D5 AWD Police Spec - Current Grey 2005 Volvo XC70 D5 AWD SE - Gone after 230,000 miles

Jun 27th, 2018, 15:40	#2
jonnyf90 Grumpy git born too late! Last Online: Mar 20th, 2024 01:04 Join Date: Jul 2014 Location: Between Derby & Nottingham	Air Con condenser clutch? My 1996 960 has a very audible "clunk" when the clutch engages Cheers __________________ 1997 965 2.5 SE Manual 1996 944 Classic 2.3 LPT - SOLD/BROKEN/SCRAPPED 1997 S90 3.0 - SOLD to doingitsideways 2021 Škoda Octavia Estate L iV PHEV (Company)

Jun 27th, 2018, 19:45	#4
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	If the compressor clutch gap is the problem as it was for me, I fixed it with this simple and free solution. __________________ 2002 S60 SE D5 Manual 209000 miles

Jun 27th, 2018, 22:38	#5
T5R92011 FCW Auto Service Last Online: Yesterday 20:11 Join Date: Feb 2015 Location: Gloucester	Also, if it's been over filled (ie pressure is too high) it will work for a bit and then stop. __________________ FCW Auto Service (Gloucester) https://www.fcw-autoservice.com

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