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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Alternator and AC woesViews : 2216 Replies : 31Users Viewing This Thread : |
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Sep 4th, 2020, 23:03 | #11 |
Bungling Amateur
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Ah..... how come I didn’t know that?
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Sep 5th, 2020, 07:58 | #13 |
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Sep 5th, 2020, 22:58 | #14 |
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Could it be a blown CCM thermistor ? The power steering is working fine ?
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Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c |
Sep 6th, 2020, 09:49 | #15 | |
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Quote:
When you were monitoring the pressure in Vida, did you see any major fluctuations as the compressor cycled? Can you read the return line and/or cooling coil temperature (I *think* I have seen this sensor data in VIDA for at least one Volvo I've owned but can't remember which model) to check the lines aren't cooling?
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2007 XC90 V8 Sport Last edited by Moose Test; Sep 6th, 2020 at 09:54. |
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Sep 6th, 2020, 10:53 | #16 | ||
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Thanks, both.
Quote:
Quote:
The measured pressure varies a little, depending on duty cycle, which makes me think that the pressure sensor is giving coherent values. I didn't see that additional data in the available Vida readings for the AC, but I will have another look. I'm going to replace the alternator first and see what happens. Anyone have a source for discounted OE parts?
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XC90 V8 Executive |
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Sep 6th, 2020, 11:20 | #17 |
Volvo Driver
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Caffyns Volvo dealer sells on eBay
Cheers Dave |
Sep 6th, 2020, 12:52 | #18 | |
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Quote:
I turned my aircon to full (ie. cabin temperature to min) and within 30 seconds of starting the engine the low pressure line (larger diameter) was unmistakably very cold to the touch. It was also quickly covered in a layer of condensation. On that basis I think it's very easy to know whether the system is pressurising correctly or not.
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2007 XC90 V8 Sport Last edited by Moose Test; Sep 6th, 2020 at 14:11. |
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Sep 6th, 2020, 13:14 | #19 |
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I'll give that a try. I did try touching the AC pipes that were visible to me at the front of the engine bay and they were hot, but I didn't spot those ones.
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XC90 V8 Executive |
Sep 6th, 2020, 13:35 | #20 |
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Those lines at the front are the flow and return to the condenser. They will never be cold if the system is working correctly - they are there to cool down the hot gas coming from the pump before it's fed into the evaporator in the car.
PS - I messed-up my high and low side in the previous post. The larger pipe is the LOW pressure return, it's the cold one.
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2007 XC90 V8 Sport Last edited by Moose Test; Sep 6th, 2020 at 14:05. |
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