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Ac issue

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
Lonnie252
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Lonnie252

Ac issue

Post by Lonnie252 » Tue Apr 09, 2019 4:34 pm

I have an issue I have been trying to diagnose for the past 2 years. Here’s what I’ve done so far, replaced the thermal expansion valve and the receiver drier on my 07 xc90 3.2l awd. Ac is still not cold. I had a shop evacuate the system so I could replace the parts and recharge the system after the install. All to no avail. Ac only blows cool at all rpms. This car does have the rear ac option.



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abscate
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abscate

Re: Ac issue

Post by abscate » Thu Apr 11, 2019 2:14 pm

If it’s holding charge, you evaluated the compressor by looking at high And low side readings. From there you can figure out if it’s a failed compressor, clogged orfice valve/ expansion valve problem, or blocked condenser


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Lonnie252
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Joined: Tue Apr 09, 2019 4:22 pm
Year and Model: 2007 xc90
Location: North Carolina
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Re: Ac issue

Post by Lonnie252 » Thu Apr 11, 2019 4:39 pm

I forget what the shop said about the gauges but he basically said the gauges are backwards from what they’re supposed to be. Low pressure side lines are cold to the touch, high pressure side is warm to the touch. Compressor clutch is engaging. I did notice that if I run the car hard it will start blowing warm for a while then it’ll go back to cool not cold.



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