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What is causing the water to leak into the trunk of the Toyota Sienna?

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★ Top Answer
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Leaking water in the trunk of your Toyota Sienna can be worrisome, often resulting from issues with the HVAC system, particularly the drain hose. A blocked rear AC drain hose may be the reason for the water leakage, which is located behind the vehicle's jack. To address this, remove the hose from the evaporator and use compressed air to clear any blockages. Once the clog is removed, the water leaks should cease. If the problem continues, inspect the trunk seals as extreme weather or age can lead to them drying out and cracking, allowing water to enter the trunk.

More answers

  • Joseph B

    Water seepage in the back compartment of the Toyota Sienna often signals a problem with the rear air conditioning system, specifically the drainage tube.

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