Question about 2002 Volvo V70

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I have a 2002 v70, the airconditioning starts out cold and then blows hot air. A mechanic told me the a/c clutch was worn out and needed to be replaced. ?

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Maybe the temperature-sensor is dirty or damaged. It's located in the center-console on the right hand side. Volvo normally fix this by exchanging the whole AC-Console ($1000) but it's possible to solder in a new sensor (about 50ct).
But try first to clean the sensor with a vacuum-cleaner.

Posted on Jul 16, 2009

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Try spraying abit of belt dressing in the clutch and on the belts. Time how long ac stays cool then let it sit for a while to cool clutch. Spray clutch and belts and try again timing it.

Posted on Jun 29, 2009

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That is very possible..or it needs servicing with freon...i would take it to some place that is reputable and get a 2nd opinion...because it sounds like you dont trust this mechanic..i hope this has helped...Keith

Posted on Jun 29, 2009

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2 Answers

Why ac blowing hot air


start off with the cheap possibilities and make your way threw.
I'd start off with replacing Air Charge temperature sensor, make sure your AC Hose isnt leaking anywhere, if those dont solve it then replace ur AC clutch, last chance would be replacing AC compressor. sometimes the compressor will malfunction randomly. or the AC clutch might malfunction aswell. covering these steps somewhere along the line you will have working AC again! good luck

May 18, 2013 | Volvo V70 Cars & Trucks

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My 2002 volkswagen passat is blowing cold air when I put the heater on. I took it to a dealer and they said that it could be because my car has a sensor that detects the temperature in the car and when its...


Your brother's mechanic may be correct but you may want to double check if you have a bad flap which opens / closes the access of coolant thru your heater hoses to your heater core. This component is called an actuator which may be defective.

Jun 21, 2017 | 2002 Volkswagen Passat

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My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
1. Is compressor clutch working? - You need to do this when the ac is blowing hot air only - locate compressor drive pulley on engine - rubber belt wraps around it. Start engine and set to max ac. When the ac is blowing hot air, look at the center of the compressor drive pulley using a good flash light - watch it for a while, it should be spinning with the pulley - this means the compressor is engaged. If not, the compressor is not engaged. If your ac is blowing hot air, then the compressor should be engaged and running (trying to cool). If it is not engaged, then your compressor clutch is probably going out. Could be low voltage to clutch, but more likely the clutch is worn out and only working some of the time. Note: if working normally, the compressor clutch will engage and disengage in cycles- but the air should always be cold. If clutch is bad, compressor would need to be replaced (sold as one unit). This is tricky to diagnose and could take some time - you need to do it when ac is blowing hot air but set to max cooling.

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

May 07, 2010 | 1999 Ford Expedition

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Honda civic 2004 airconditioning not blowing any air hot or cold working fine yesterday


the blower motor is out of your car that blows hot and cold air. get that replaced and this will fix your problem.

Jan 12, 2010 | 2004 Honda Civic

1 Answer

A/c is blowing hot air


Hi

Wel I am not a mechanic or anything, but i haev had some experience with aircons. The one problem might be that there is a leak in the pipes. 9 out of ten times the leak is where the various pipes join. you can simply take a spaner and tighten them otherwise the leak maybe where the compressor is. if the pipes were blocked then it will not blow any cold air and you said it did blow cold air for a while. the way to find a leak is take soap water in a spray gun and spray the soap water in on the pipes and joints, this should blow a bubble where the leak is. however this can only work if you have gas in the compressor. so fill in more aircon gas first.
hope i am right.

Thanx

Sep 21, 2009 | Chevrolet Cars & Trucks

1 Answer

I have a 2002 Toyota Corolla Le and everytime my car is at stop sign my aircondition starts blowing out hot air but, once the car is moving the air starts back blowing cold. Do you know what might cause...


Make sure your fans are running. It sounds like your fans are not working all the time. With the AC on the fans should run constantly. Check fan relays and fuses.

Jun 13, 2009 | 2002 Toyota Corolla

1 Answer

1998 Volvo V70 A/C Intermittent


I had exactly the same problem. When your engine is cold and off check the gap on your ac compressor with a feeler gauge, it should be between 0.3 and 0.5mm. If it is larger you need to re-shim which invloves undoing a nut on the end off the compressor and removing the clutch plate, then removing the appropriate shims (look like washers) then replace. The reason it blows warm after 10 minutes or so is because the ac compressor gets hot and the clutch gap gets too large for the electro-magnetic clutch to engage. Some people would say that you need a new compressor but all you need to do is a re-shim.

Mar 01, 2009 | 1999 Volvo V70

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