Hello all,
I am experiencing trouble with the car's ac. The problem is that car does not want to blow cold air when I turning A/C on. My first thought was that it is low on freon, but the problem persisted when it was recharged. By mechanic's recommendation I changed my compressor in the car, but it still did not help. Now after changed compressor it starts to blow cold air after 30 minutes from the moment when I start the car.
Then I read with Vida any errors that my car might have. The car had few code errors, but they did not have any connection to A/C control module (Errors: failed 3rd seat memory and steering angle sensor). After, I looked at pressure and temperature readings from an evaporator and cabin. I will attach three photos from my computer with:
1) does not blow cold air,
2) after 10 min turned off and on but still does not blow cold air,
3) after 20 min turned off and on and it started to work.
I don't know what to look next to fix AC.
In advance thank you for your help.
Volvo XC 90, 2008, 3.2, Problem with A/C turning on
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jimmy57
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new compressor or used compressor?
The most common reason for your symptoms on that engine is the solenoid stuck into compressor is worn and binding. Once the compressor gets hot the expansion releases the bind of the solenoid and it works until car is parked and cools down. The solenoid is available separately and the refrigerant has to be evacuated in order to replace the solenoid. The solenoid controls compressor piston stroke. If the solenoid is the problem the high and low side pressures will be almost the same when the problem is happening. The high side might be 120 and the the low side 95-100.
The most common reason for your symptoms on that engine is the solenoid stuck into compressor is worn and binding. Once the compressor gets hot the expansion releases the bind of the solenoid and it works until car is parked and cools down. The solenoid is available separately and the refrigerant has to be evacuated in order to replace the solenoid. The solenoid controls compressor piston stroke. If the solenoid is the problem the high and low side pressures will be almost the same when the problem is happening. The high side might be 120 and the the low side 95-100.
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Lubkov
- Posts: 2
- Joined: 1 June 2019
- Year and Model: 2008 xc90 3.2
- Location: Brooklyn
- Has thanked: 1 time
I've got Sanden rebuild compressor.
Initially I planed to get Valeo compressor that my car had. Salesman recommended me a Sanden compressor because his customers had no problem with it compared to problematic valeo compressor.
Also the mechanic said told me that in order to make normal pressure in the system, he had to charge less refrigerant than it was recommend by volvo. I think also this could be the answer but while looking at VIDA the pressure is somewhere between 247 and 260
Initially I planed to get Valeo compressor that my car had. Salesman recommended me a Sanden compressor because his customers had no problem with it compared to problematic valeo compressor.
Also the mechanic said told me that in order to make normal pressure in the system, he had to charge less refrigerant than it was recommend by volvo. I think also this could be the answer but while looking at VIDA the pressure is somewhere between 247 and 260
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