Question about 2000 Volvo V40
The problem:- have a volvo v40, 1998 .when switch from recirculate air to outside air the switch motor does not complete its cycle and after say 10 seconds clicks very loudly until I press it again to recicurculate and then motor whirs ( very faintly) and the clicking stops. Garage says all dash to come out to sort out as something could be in air ducts. Also said cannot disconnect switch as goes to a PCB. If I could get at the unit and unplug it when it is fresh air mode that would be fine, BUT where is it to unplug. The garage said all dash has to come out hence my concerns about the cost. Hope you can help me
SOURCE: 2000 silverado ac problem
Mine has always done this. As far as I can tell it is just Engaging in anticipation of a Person wanting to change the Temp. Computer Signals it to do this.
Posted on Dec 31, 2008
The switches have to be removed and the bulbs are on the back of the switch. they look like a grey plastic screw. the bad news is that they are a dealer only item.
Posted on Jan 09, 2009
I think here, by your description, that there might be something that has slipped inside the vent holes from outside. you can try to blow some compressed air through the vent holes at the bottom of the windscreen.
Otherwise you can try to look under the dash, activate the switch and see if you can locate from where the noise is coming and see if you can reach the mechanism that control the vent. Normally it must be moving free. Otherwise your local mechanic should be able to fix that ufor you.
Posted on Jan 26, 2009
when it is cold out your car is designed to make sure it is not on recirculation mode if it was your inside windows would be all fogged up because of humitity .
Posted on Jan 30, 2009
It sounds like you need to go to the shop. the blend doors control the air flow, heat, and distribution. There are about 6 to 7 motors in all. They most likely need to be recalibrated. There is also a possibility the Climate Control Module Software will need to be upgraded. There is a small chance that there is a bad blend door motor that is crashing the communication link between the motors and the module.
Either way it goes only the dealer, or mabey a very heavily invested independent shop.
Hope this helps.
Posted on Feb 23, 2009
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