Question about 2001 Volkswagen Jetta TDI

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Air conditioning compressor is working and clutch kicks in, system is charged but air does not come out cold

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There are many possible reasons for this event and if the compressor is engaging and you dont have the proper training and equipment you need a professional diagnosis in person. You may have under or overcharged refrigerant level. when did it work correctly last? Has there been an attempt to charge the system? If so what were the gauge readings ? Are your cooling fans on your radiator and condensor running? It can be as simple as a servo relay on a gate or door in the plenum directing the air in the wrong direction. Is there condensation dripping from out from under the cowl area? Are any of the a/c lines under the hood sweaty looking? Or it may have a cloged expansion valve or bad compressor. Auto a/c not repaired correctly can and usually does cost more and is frusterating as well as dangerous if not done by a competent trained or knowledgeable person. good luck

Posted on Jun 20, 2009

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WHERE IS LOCATED THE AC FUSE IN VW JETTA 2001

Posted on Feb 11, 2009

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Well if the air not come cold it means that your Freon gas is over.. re-fill it.

Posted on Jul 01, 2008

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first of all why did you charge the system it never needs to be recharged unless you have a leak in it that being said when you turn on the ac do you hear the compressor clutch kick in and if so do you see condensation on the accumulator and does it feel cold? yes/no if yes then the vacuum door inside the car is not opening thus giving you warm air========if no the refrigerant leaked out again because of a leak ///// or the cycling switch is bad///// or there is still not enough refrigerant in the system to get the switch to turn on the compressor//// or your compressor is n/g

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what do you mean intermittently not working.......a/c clutches are meant to kick on and off, depending on the amount of compression the system has......if your not getting cold air i would do a few different things...
check the clutch.....see if it is kicking in when you turn on the a/c.
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The pressure means nothing as far as the state of charge. You need to have the system completely evacuated and recharged with the specific charge weight for that vehicle. Only then can the pressures or anything else mean anything.

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2 Answers

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Make sure the pressure is 25 to 45 psi on the low side and that the pipes are getting cold on the low side.

Could be the vacuum controlled motors inside the dash.

Set climate control to hot then cold or the temperature control lever from hot to cold and listen for the vacuum motor operating the flap inside that changes the flow from the heater core to the evaporator inside the dash area.

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