Question about 1998 Buick LeSabre

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The air conditioner drain is clogged on my lasabre. How can I unclog it?

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I usually unclog them using a puff of compressed air. The crud that plugs them is pretty soft and generally is quite easy to blow out. It may plug up again a time or two until the crud works itself out but usually once the drain is finally clear it will stay open for quite a while.

Posted on Jul 07, 2010

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The airconditioner drain is clogged. How do I unclog. Also there is an odor when I run the air conditioner. Could they be related.


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My Air Conditioner Drain is plugged. Where is the


-- open the driver's door
-- locate where the air conditioner blower box is attached to the passenger side of the firewall - see photo #1 - look to the immediate right at the top of the gas pedal arm
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-- condensation flows toward the front of the vehicle through the firewall at the leftmost edge of the air conditioner blower box - drain channel
-- open the hood and stand next to the front wheel on the driver's side
-- look down at the firewall over the battery and to the passenger side of the brake master cylinder - see photo #2
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-- locate the small diameter metal lines running horizontally and attached to the engine compartment firewall
-- locate the hole in the engine compartment firewall panel behind the small diameter metal brake lines
-- this hole leads to the drain opening in the air conditioner blower box mounted in the passenger compartment
-- follow the brake lines as they run from under the vehicle and turn toward the front wheel on the driver's side
-- locate the hole in the engine compartment panel behind the brake lines
-- insert a short length of stiff wire into the hole through the engine compartment panel to unblock the drain hole

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