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Why is water leaking on the passenger side of a Jeep Grand Cherokee?
Wiki User
∙ 14y ago
This is a common problem for Chrysler products with A/C evaporator leaks. First step: locate round plastic housing of A/C condensate drain under passenger dash by pulling up carpet. This will be near the floor-firewall angle corner in a vertical orientation. Drill a small hole ( 1/2 to 3/8) in the middle of the housing and get a matching rubber plug to later close this hole. Into the hole insert a long wire such as a coat hanger to dislodge any dirt or road debris. The A/C condensate should drain into the square frame rail on the passenger side of the vehicle, and when in use, cause a puddle of water under that side of the Jeep. After clearing the drain, plug the hole you drilled and perhaps secure the plug with water proof glue.
If this fails (as it did on my Jeep) - take an ample amount of water proof glue/caulk and caulk all around the base of the plastic housing where it mounts on the fire wall. After time the original rubber seal breaks on the A/C condensate drain, and water leaks into the interior. This is a common design flaw with Chrysler.
It may take various caulk applications and test runs with the A/C to determine if the leak is sealed.
Wiki User
∙ 14y ago
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