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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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06 xc90Views : 1215 Replies : 21Users Viewing This Thread : |
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Apr 20th, 2018, 22:17 | #1 |
ian ferguson
Last Online: Mar 26th, 2024 17:42
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Location: London
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06 xc90
Hi,
With the good weather i just noticed my air conditioning is not working, also i don't think the engine fan is working either. The clutch is not engaging on the compressor, the gap is ok, it's not getting power. is there a relay or something else thats interrupting the power when the air conditioning is turned on. Thanks in advance. Ian |
Apr 21st, 2018, 00:29 | #2 |
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Most obvious culprits are a faulty pressure sensor or low gas or a faulty relay.
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Apr 21st, 2018, 09:04 | #3 |
ian ferguson
Last Online: Mar 26th, 2024 17:42
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I have VIDA would that pinpoint it. I haven't used vida for a long time so not sure what to look for.
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Apr 21st, 2018, 15:12 | #4 |
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Yes Vida will show actual gas pressure and describe minimum gas pressure, evaporator temperature, remotely activate the AC relay..... Lots basically.
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Apr 21st, 2018, 16:05 | #5 |
Bungling Amateur
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9 time out of 10 the cause of this is low (or no) gas pressure in the system. In these cases the compressor is disabled to prevent damage as the lubricating oil is in the gas.
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Apr 21st, 2018, 16:56 | #6 |
ian ferguson
Last Online: Mar 26th, 2024 17:42
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Thanks you your replies, I will have some time tomorrow to explore. The laptop i bought for VIDA is tediously slow so it sometimes puts me of using it.
Thanks, Ian |
Apr 22nd, 2018, 14:10 | #7 |
ian ferguson
Last Online: Mar 26th, 2024 17:42
Join Date: Aug 2006
Location: London
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Hi, I managed to switch the relay in vida but the air con didn't come on. I haven't
found how to get the gas pressure yet, any tips. had to stop got to cut the grass. Ian |
Apr 22nd, 2018, 14:36 | #8 |
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Pretty sure that gas pressure is in ECM under the Parameters tab.
Click details/description for the guide as to what it should be.
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Apr 22nd, 2018, 20:38 | #9 |
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95% chance that this will be caused by low refrigerant gas pressure.
As it's impossible to work on without the correct gear and knowledge, i'd suggest taking it to an AC specialist to sort it. They will: - Pump out whatever refrigerant is left - Pull a vacuum and check for leaks - Assuming no leaks, pump in the correct quantity of refrigerant - Test the system Last time I had this done it cost about £50 and took about 1/2 hour. |
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Apr 23rd, 2018, 08:44 | #10 |
ian ferguson
Last Online: Mar 26th, 2024 17:42
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[QUOTE=aland;2395766]95% chance that this will be caused by low refrigerant gas pressure.
As it's impossible to work on without the correct gear and knowledge, i'd suggest taking it to an AC specialist to sort it. Yes I am going to to do that, but i'd like to know what the problem is first. Thanks, Ian |
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