Question about 1999 Volvo V70

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Ac stops blowing cold air after a few minutes

I took it by a repair shop and they told me that the cultch was slipping. A new clutch/pulley installed would cost appox. $450 to $500.

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Take it to a second shop for another opinion. If the freon is low or too high it will affect the clutch. Let the second shop give you an opinion without telling them someone else looked at it. There are several pressure switches which can cause problems.

Posted on Jun 16, 2009

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You would need to find out if the compressor continues to run when the cold air stops.

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AC doesn't blow cold air.


I'm sorry you have had such bad experiences with the shops.
I would have stopped at the second one and forced them to fix it at their cost.
I doubt you will be able to find the problem yourself, but I understand your hesitation to go back to another mechanic.
I will be happy to try to walk you thru the diagnostic process but it may take a few days.
First, do you know if the system is full of freon ?
If it is full, do you know if the compressor is running when the ac is switched on ?
The first shop should have discovered the blown fuse once they charged the system unless it took a day or two for the fuse to blow. The second shop that put the compressor on should have found the faulty fan, and the leaking hose if it is in fact leaking.
So should have the third shop.
If the compressor was faulty, and the system had been empty for a time, the hose could have started leaking once the system was being used. The pressure on the high side is over 200psi when the compressor is running.
Let me know where you want to start with the diagnosis after you answer my questions.

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My ac is not blowing cold in 2001 saturn sl1. I had the cooling fan replaced and it blew cold for 1 day. Then I bought a recharge kit and the pressure was to high for me to add freon. I took it to the shop...


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I would check the following possibilities:
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2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

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Screeching noise, then a/c stops blowing cold air. Still blows air, just not cold air.


it could be the air conditioning clutch going out. to check turn your car on and idle it with ac on and hood open. at the ac compressor it will have a pulley on it with a clutch that engages when the air conditioning is on. if it engages and disengages it can be the clutch itself has gone bad, the ac clutch will also disengage if there is not enough freon in the ac system, will also engage and disengage if the pressure gets too high in the ac system. Depending on the year of the vehicle it will disengage at full throttle and come back on when you are not at full throttle.
If it is a metallic sounding screech for example take a coke can and drag it across pavement kind of sound it could be a bad compressor or a bad ac clutch. If it is a more rubbery sound for example a car spinning its tires kind of noise it could be a loose belt.

1. Check to make sure all belts are tight under hood
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