Question about 2008 Toyota Highlander

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2008 highlander sunroof drain goes into the footwell but does not exit and builds up till overflows into passenger side. How do you access the footwell to clear blockage? Hose into the footwell is c

2008 highlander sunroof drain goes into the footwell but does not exit and builds up till overflows into passenger side. How do you access the footwell to clear blockage? Hose into the footwell is clear. Just need to clear from footwell to outside.

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  • 3 more comments 
  • Ken Good
    Ken Good Nov 17, 2014

    I have openned the sunroof and poored water down the right front drain. The drain is clear. It's emptying somewhere in the wheel well next to the passger side and not draining out the bottom. When enough water builds up and backs up into passenger side through an electricl clamp hole. How do I clear the blockage from the drain are to the ground?

  • dannydoesita Nov 24, 2014

    Ken, maybe we both are going about this in the wrong way. I was thinking that it appears as if this drainage is supposed to be at bottom of car. It is possible that as with an air conditioner drain whichis at the level above the toe board of your car,It is possible that so is the sunroof drain. The one thing that I was trying to avoid was removing the inside passenger side panel. There may be a few screws, if not it would pull out . You may find that the line has disconnected from a higher location. Keep looking.

  • Ken Good
    Ken Good Nov 24, 2014

    dannydoesita,

  • Ken Good
    Ken Good Nov 24, 2014

    Did you see my post from last night that we fixed it. see comment under your first post. There was a downpour last night and the car is dry. Yeahhh!

  • Ken Good
    Ken Good Nov 24, 2014

    Did you see my post from last night that we fixed it. see comment under your first post. There was a downpour last night and the car is dry. Yeahhh!

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  • Master
  • 603 Answers

Go under car with a wire and poke upward. Try to pull out as much blockage as possible so it won't happen again. You can make a small bend in wire end to do this. GOOD LUCK FRIEND.

Posted on Nov 17, 2014

Testimonial: "Where do you do this?"

  • 4 more comments 
  • dannydoesita Nov 17, 2014

    If you know where the foot drian is, the drain would empty under the car. Look for an opening that would be under the area where the drain is, give or take an inch or two. You will find it. Get back to me with any other details, it's no problem.

  • dannydoesita Nov 17, 2014

    Ken, one more thing. ot come out exactly under the area I discribed. You may need to look up in the area behind the front wheel well. You may have to remove a bolt or two. Bend back the wheel well and look in that area.

  • Ken Good
    Ken Good Nov 22, 2014

    I actually drilled a small hole from the passanger foot area into the compartment the hose empties into. Can actually see the water coming into this area, build up and back out into passenger foot area. Do not see any drain coming out and the area is very hard to access. Am almost ready to go to dealer but hate to do this after having identified the issue and see where water comes in but not find how where it's clogged. Seems like a poor design to not have the hose go out the bottom.

  • Ken Good
    Ken Good Nov 22, 2014

    By the way, I did take some bolts off under the wheel well and pulled back the plastic cover but no openings under there.

  • Ken Good
    Ken Good Nov 24, 2014

    We fixed it last night after posting above. We made the drill hole a little bigger and my son was able to see what looked like a drain at the bottom of this well. He tried to run a wire through it but it seemed solid, so he just poked the wire around it and the water started going out. There is no way to access this well directly that we can see other than removing a bunch of electrical wires and plugs by the passenger foot area and pulling out the plastic boxes they are hooked in. We can see the area below this well from a plug in wheel well. The water drains from the upper container area, down into a lower one and then out the car. Very hard to access and see the flow.

  • daryl fong
    daryl fong Dec 06, 2014

    I am having exactly the same problem. Where do you drill? Very frustrating. Are you able to post some photos?

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Posted on Jan 02, 2017

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SOURCE: 2002 Toyota Sienna Sunroof

There are 4 drains on the sunroof (2 in each front corner, 2 in each rear corner).
If you want to check to see if they are clear, you can do this.

Get a squeeze bulb (about the size of a turkey baster) and squirt water down each drain, look for water draining out at the bottom of the car. For the rear drains, park the car on a slight uphill, and gently squeeze water down the drain trough on each side, here again, look for water draining out of the car.
If those ar clear, next step is to check the seal of the glass. The drains are only designed to take in a small amount of water, if there is too big of a gap between the panel and the body, it will over run the drain troughs (kind of like when the gutters on a house get stuff in them).

Finding water leaks is kind of a pain, but not if you take it a step at a time.
One thing to remember, water does not run uphill.

So to further water test it. Find a place where you can park it uphill or downhill, grab a flashlight, a friend and a hose.
Start at a low spot, and work your way around the sunroof (one person inside with the light, one outside with the hose). Just let the water run slowly, you don't want to use a nozzle or a spray.
Once you can see when the water starts leaking on the inside, you can narrow down the cause.

Posted on Sep 08, 2008

  • 58 Answers

SOURCE: 1997 honda accord sunroof drain problem

You need to open the sunroof fully and locate the small drain holes at each corner. They will be blocked with debris. Get a piece of welding wire or the likes and carefully unblock the hose by prodding and pouring water down it. When cleared the water shout run away freely.

Cheers John

Posted on Dec 19, 2008

  • 5 Answers

SOURCE: clogged drain hose in sunroof

ok open sunroof there are 2 drain holes use piano wire or something equeal take a low psi air tip nozzle and blow into drain then take a small cup of water and pour like an ounce of water into drain it should come out by lower door and fender area note mine was plugged down by fender hose was submerged in sand

Posted on Jan 10, 2009

  • 6982 Answers

SOURCE: 2004 Hummer H2 leaking water on passenger floor

never worked on a hummer but rule of the day is that there always is a drain on the firewall on the engine side. usually a small rubber hose about two inches long direced downward. Usually you can stick your finger in there and clear it out. Don't shove anything hard into it or you can punch a hole in the evaporator core.

Posted on Apr 05, 2009

  • 255 Answers

SOURCE: 2005 Jeep Grand Cheerokee Sunroof Leak

have the sunroof gasket replaced
or buy one online cheap at sunroof doctor.com

hope2help shack

Posted on Apr 19, 2009

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