Toyota highlander water leak passenger side

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Hi, have had wet carpets front and back for a while now. I finally removed carpet to the back seat row to expose bare floor. When sitting level and not driving, even in heavy rain, water does not enter. So I drove the vehicle in a pouring rain and whenever I braked, water was seen oozing from the side floor body wall BEHIND the driver's, and to a lesser extent, the passenger seat as well. I removed the floor side plastic trim at the entrance to the back seat row on both sides.

Toyota highlander water leak passenger side

The source of the leak turned out to be missing rubber grommet hole plugs under the rear bumper. Water was flowing into the holes and collecting inside the frame of the car, eventually making its way into the cabin. The same principle can also be applied when troubleshooting water leaks on other models of Toyota or Lexus cars, as they often share similar parts and frame design. A water leak can cause corrosion or some serious damage to the electric system, and in my case to the hybrid battery located on the floor under the rear passenger seat. It can also cause mold and bad smell if the water stays on the carpet for too long. The problem was well hidden from plain sight. I tried many of their suggestions, like cleaning sunroof or AC condenser draining tubes, checking doors and roof racks insulation, door trim and windows weather moldings, etc. Months went by, and I kept dealing with wet carpets and kept checking online forums for the latest updates on this problem. At that point, I was willing to try anything in Florida it rains every single day in summer…. Removing the rear bumper cover was quite easy.

Carlos answered 4 years ago.

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I discovered lately that water drips continuously into the driver side floor from the cable hanger clip hole just below the fuse box.

Toyota highlander water leak passenger side

If your Toyota Highlander is leaking water, it could mean a few different things are happening. Some water is completely acceptable. It depends on the situation. If you are trying to figure out if your Toyota Highlander is leaking water , the first thing we need to do is determine if you have coolant or water underneath of the vehicle. Coolant is sweet smelling and is typically orange, green, or pink. It might not seem possible to determine the color of the liquid in question, but a paper towel allowed to soak up enough coolant definitely will begin to show pigment.

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The source of the leak turned out to be missing rubber grommet hole plugs under the rear bumper. I hope my Highlander never develops the same problem!!! I had to unplug the wires and pull the box out to access the drains. I removed the bumper and saw all the rubber plugs were in place. After all screws and fasteners have been removed, you are ready to remove the bumper cover. Not sure what to do at this point. Do you still have questions? Mark helpful. Start from one of the sides right above the wheel well and firmly pull the bumper cover away from the body. I have the same exact problem.

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Any other ideas? Guru96M5J4 - you have to unplug the wires and then remove the wire box. The floor boards are getting wet on the door sides. Ran the water hose on the sunroof for a while and now water drains underneath the car through the pinch welds as is supposed to. It can also cause mold and bad smell if the water stays on the carpet for too long. Related Models For Sale. However; after a big rainfall earlier in the month I still got water in the passenger front and rear floor. I hope yours and mine hold up for a while! Could also start by dumping drano some drano down the hole need a funnel. Hopefully someone has a solution to this problem Here's a video I found which led me to this discovery. A stopped up drain sounds reasonable, but am not mechanically inclined and totally green when it comes to figuring out exactly what your instructions are, Dave and Michael.