Question about 2004 Saab 9-3

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Clincking sound from under dash when door is opened ?!?

When my car is cold, and i open the door to my 2004 9-3, there is a loud 'clicking ' sound that seems to be coming from under the right side dash - lasts 3-5 seconds than stops....no issues either starting or driving....any clue what i'm dealing with?

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The sound comes from the ventilation system, if you push the button on your ventilation system that controls the air recycling it should reproduce the sound that you are describing.Apparently it is a plastic gear that switches between outside air and recycling and this gear has become damaged and lost some of its teeth.
You have to dismantle your glove box to be able to get to the mechanism to replace it. I have the same problem with my 2004
9-3 and as this fault does not affect the running of the car and the ventilation system is still fully functional i have decided to leave it as is. Hope this is of some help

Posted on Nov 29, 2008

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My 2006 Impala has an intermittent loud clicking sound coming from under the dash. It will happen with or without the car running. I am also having trouble keeping charge on my battery.


This is probably the Air Blend Door Actuator. There is a small gear driven motor that opens and closes the various heating and air conditioning vent doors inside the dash. Since you hear it after turning the car off, it is most likely the fresh/recirculating air door, and they are designed to automatically open to allow fresh air in when the car is turned off. The clicking you hear is the sound of the gears slipping inside the actuator. The parts are fairly cheap ($20-$35) and with simple hand tools can be replaced.
Here is a video showing them replacing one on a Monte Carlo, which is basically the same as the Impala:

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87 chevy caprice A/C vent not opening


Depends on what is clicking. The engine vac opens blend doors under the dash. It could be one of the vac pots or a blend door is sticking. Normally the hissing noise means you have a leak, but a leak usually does not fix itself.

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1 Answer

When i turn the heat on it makes a clicking sound, and it blows out cold air, but when i turn cold temp on the clicking sound stops, until heat temp is turned back on. please tell me how to fix this...


Your ac blend door is broken or the actuator that opens and closes the door is broken. The ac blend door moves up and down to direct air flow through the heater core(for heating) or evaporator core(for cooling).

When the door mechanism breaks, the blend door falls down and you will only have ac but no heating.

You can buy a ac blend door kit for your explorer, they cost about $120 on ebay or other places.
search for Explorer ac blend door kit.

The duct is under the the dash on the drivers side. And you will have to cut open the duct to install the replacement door.

Heres a link to a tutorial of how to do the job.

http://www.heatertreater.net/Ford%20Explorer%2002-08.html

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1 Answer

2004 mercury mountaineer.heat problem When turning ac knob to heat clicking sound like door opening and closing repeatedly sounds and air blows cold instead of hot.


2004 mercury mountaineer.heat problem
When turning ac knob to heat clicking sound like door opening and closing repeatedly sounds and air blows cold instead of hot.

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1 Answer

Loud clicking noise from dash whenever heat


I have and 2002 with rear air and had the same noise and problem in the back. There is motor in the back that moves a flapper door open and closed to blend the hot and cold. The motor has plastic gears in it and they strip out making a clicking noise when the motor cannot hit the point that the heat control dial is being set too. Probably the same set under the front dash. You will more than likely need to by a new motor assy.

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1 Answer

1997 Lincoln Town Car; nothing but heat; loud clicking under dash finally stopped but turning on climate control/vents only results in high temperature heat. Sounds like a blend door problem, but is it...


check your vaccum lines behind the dash. if you find the one that goes to the blend door, put some vaccum on it and see if it opens and closes for you. if not, then yes, your blend door is broken. if it closes, check your temp control gauge.

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1 Answer

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sound like blend doors are not working there is a motor under dash or vacuum line under dash ant working they should be color coded red yellow black i think need more let me know

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1 Answer

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this noise is the air temperature control blend door motor, a very common problem and very hard to repair, he dash must be removed to access the motor..

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I ended up taking the vehicle to the dealer. The 'blend door' actuator had gone bad (stripped gear?). $66.00 for the part over $330 for labor. The console and part of the dash had to come out.

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1 Answer

I have a loud tapping noise sometimes, coming from under my dash (drivers side). It sounds as if someone is tapping with a hammer on the plastic. I have a 2002 Ols bravada. It it safe to drive?


The AC/Heater unit has electric motors the open and close all the vents and heat to cold doors. when these electric motors begin to open or close past their stop points, the motor try to continue to open and close itself properly, thus fourth its tapping all the time. to see which one it is, turn the heater control to cold and slowly to hot. most of the time, its the heater door. if not, do the same with the vent control. the problem is common withe the GM SUV's.

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