Question about 2005 Pontiac Bonneville

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Air conditioner leaks into passenger floor board

On a three hour trip the a/c started leaking onto the passenger floor board, but does not do this on short trips. Is this just a drain clog or is something else going on?

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If it is just clear water it is the drain tube that might be plugged, u can see the tube from underneath the car, it may have dirt in it. if it is sticky or orange or green it is coolant and that would indicate a heater core leak. The heater core is is what allows you to have cabin heat. If it is coolant the 1st thing i would try is a tube of powdered alumaseal, you can get it at any auto part store. DO NOT USE BARS LEAK OR ANY OTHER PELLET STOP LEAK, as they very rarely help and more often than not they clog up other areas in the cooling system, the Alumaseal is a silver powder made from aluminum and adhesives that works amazingly well.

Posted on Jul 13, 2008

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Did you mean to say coolant started leaking into your floor board. Because A/C can not leak into your floor board, if so its probably your heater core, the heater core is usually located behind the glove compartment. a very simple fix. If so contact me back and I will give better directions.

Posted on Jul 12, 2008

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