Question about 2003 Chevrolet Impala

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Air Conditioning water leak inside

The codensing water is leaking
under the passenger side of dash

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The drainage tube for the evaporator case is plugged causing the the condensation to drain inside instead of outside the car. The car will probably need to be lifted to find the drainage tube. Use a pick to gently remove the debris blocking the tube. You must be very careful as not to puncture the evaporator core.

Posted on Jun 04, 2010

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The drainage tube for your evaporator core case has become clogged. it is accesable from underneath the car. it comes out from the bottom of the firewall, sort of around the passenger foot area. you can use a coat hanger to try and clear the blockage. do not be too forceful, you do not want to damage the tube or the evaporator. good luck!

Posted on Jun 04, 2010

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  • Chevrolet Master
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Sounds like a drain tube is clogged or disconnected. To quickly remove clog jack up car, or use ramps and put suction on the drain tubes on both sides of the transmission for condensation. that should clear any leak. If its disconnected it will make a sucking sound inside your car where the tube has fallen off/apart.

Posted on Jun 04, 2010

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Also, this video can help as a reference guide...


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