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Pontiac G6- Water leak

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  • I have seen numerous posts about water leaks, and mine has just shown up. I bought this 2008 G6 this spring (no sunroof). I park on a slope and noticed a month ago an inch of water in the back passenger side back floor area. I assumed my daughter spilled water, but she said no. I cleaned it up, and within a day or two it was back. I have battled it and my mechanic says mechanically it looks fine, the A/C appears to drain properly. I live in Tampa so we get constant rain and am always using the A/C so I do not know where it could be coming from. The other night it was parked out and we got inches of rain, I expected it to be flooded and there was not any water in the car.

    I want to find out if this is a known problem that will be fixed by a dealer for no charge. I just turned over 38,000 miles...

    Any tips from those who have been through this?
    Thanks!
    Todd
  • ralkaralka Posts: 72
    the issue for the rear sunroof tubes is that they have to much tension at the rear of the sunroof drain tray . this causes the tubes to pull loose from the tray extensions. the fix ( without the extension tubes ) is to lower the rear of the headliner, loosen the mounting clips for the rear tubes but only the first 3 on either side. than you pull the tube up about an inch to an inch and a half, there will be some resistance but you will feel it break free. after that you reattach it to the tray extensions and reinstall the trim. if you put the extension tubes in it takes a little longer and you must be sure that they are clamped together.
    hope this helps... $700.00 is a lot for this repair
  • Hello Todd,

    We're sorry to hear that you've been having some water troubles with your G6. If you decide to have this looked into by your dealership, please be sure to let us know as we're available to help in any way we can. We can be reached privately at socialmedia@gm.com

    Sarah, GM Customer Service
  • I have two of these and one is now leaking badly everytime it rains. It took me a while to find this forum but it appears there are hundreds of these complaints. Mine is not the AC unit as some describe. Mine is leaking at the front dome light and somehow getting down to the rear passenger floorboard, (also a common symptom). I've read about the drain tubes coming loose and frankly it sounds like a hassle. Anytime you take a headliner out, you are asking for trouble getting it back in correctly or breaking some cheap clip they use.
    I'm curious if anyone got a POSITIVE response from anyone at GM? I see someone named Sarah from GM responds frequently. Did GM cover this "known issue" and if not whos starting the suit? sign me up. My carpets have started the mold process and I'm less than pleased that I have 2 of these cars to deal with.
  • Good morning bjt2032,

    We understand that this leak would be very frustrating; if you would like for us to check into this with you and your dealership (should you decide you'd like to go that route), please email us at socialmedia@gm.com with more information (include your name and contact information, a summary of the situation, the last 8 of your VIN and mileage, and the name of your dealership).

    Sarah, GM Customer Service
  • lego78lego78 Posts: 4
    My dealership did find that the drain tubes came undone. The first time, they just re connected them. A few weeks later, it came undone again. However, GM has a one year or 12,000 mile warrenty on things they fix. When it came apart the 2nd time, they put an extension kit on it with no charge. I have had them take my headliner off twice and it looks just fine. Remember, if they break something, they have to fix it on their dime. My dealership is really good and willing to help out. I would follow up with GM, they will probably give you a service number. Call around to certified GM dealerships in your area, and get a price for your issue and go from there. Good Luck!
  • amp7amp7 Posts: 2
    07 Pontiac G6 GTP with moonroof. First, I noticed humidity and moldy smell. Months later, I noticed dampness on the front driver seat floor. Soon thereafter, after heavy rain, water pooled on the back passenger-side floor. I cleaned it with a towel and blow dried the area. I removed the back seat. The liner was soaked; the foam under the seat was soaked & moldy. I removed the seat permanently and blow dried that area. However, parking on a hill so that the front is higher than the rear causes more water to collect in that area, as the car sits in dry weather over the course of one day.

    I have not detected water around the front dash, moonroof, overhead lights, or walls of the car. There was one day which my passenger reported moisture on his seatbelt. Also, there was one day my CD refused to play. ~3/5 CDs which I ejected had moisture on their underside.

    If this makes sense to anyone, please advise!
  • amp7amp7 Posts: 2
    edited November 2012
    Hello all you frustrated lemon owners out there:
    I am by no means an expert. Here is a summary/ collection of useful posts I've seen on this forum. Hopefully, it saves someone some time. Use the search bar to jump to the original post for more info.

    Pro-tip: Check under your rear seat and take it out. It could be soaked underneath. Let it drip dry outside then bring it in and place the foam side in front of a dehumidifier. If the foam is really moldy, put on a mask and cut a thin layer of the foam off using scissors. And/or you can also try cleaning it with a carpet steam cleaner. Bleaching is ideal in order to kill the mold. Mold can cause illness so do wear a mask, clean up the shavings, and don't procrastinate solving the route of the problem.

    #1 cause:
    The drain tubes coming from the moon roof going to the back of the wheel wells get disconnected, possibly under the roof liner. Forums say that the tubes are too short so they get disconnected easily. Then water drains inside the frame of the car, into the interior, commonly the rear back seat. They charge $900-1000 at the dealer to take everything apart and put it back together, which doesn't solve the problem. $400 for drain tubes or $700 for an extension tube kit (at the dealer). Some say that $200 can get the tubes replaced at a body shop. A few have tried the do-it-yourself path:

    DIY FIX 1A:
    "the issue for the rear sunroof tubes is that they have to much tension at the rear of the sunroof drain tray . this causes the tubes to pull loose from the tray extensions. the fix ( without the extension tubes ) is to lower the rear of the headliner, loosen the mounting clips for the rear tubes but only the first 3 on either side. than you pull the tube up about an inch to an inch and a half, there will be some resistance but you will feel it break free. after that you reattach it to the tray extensions and reinstall the trim. if you put the extension tubes in it takes a little longer and you must be sure that they are clamped together." -Message #189, ralka. Also see #35, #24.

    DIY FIX 1B:
    "i took my Pontiac to the GM dealership and they wanted $900 to fix it... so today i took the headliner down (which is actually pretty easy i must say) and found out that both draining tubes were disconnected... so i reconnected the tubes using a PVC glue (very strong) around the outside and waited till it was dry... then ran water down the tubes and drained successfully down and out the back end... and put the headliner back in... connected very easily. i then took out the back seat and found that it smelled... so i took the seat out and the liner... and i plan to shampoo and sanitize the seats and the carpets... cheaper then $900!" -Message #75, bess15.

    #2 cause: A/C lines (?) or front AC condenser behind the dashboard (?) or evaporator drain (?)

    Tip #2A: If the A/C smells like mold, tell the dealer to activate "blow after" feature on HVAC contoller. This eliminates the smell. - Message #187, maddog0324

    #3 cause: clogged door drains
  • gmcustsvcgmcustsvc Posts: 4,154
    amp7,

    We're sorry to hear about this leaking concern you've encountered with your G6; if you decided upon working with a GM dealership and wanted for us to check into this further with you, please email us at socialmedia@gm.com with more details (including your name and contact information, a summary of the situation, the last 8 digits of your VIN and mileage, and the name of your dealership).

    Sarah, GM Customer Service
  • Hi Sarah, I am having the previous issue of the water leaking throughout my vehicle Pontiac G6 allover again. Please inform me of who I contact for help with this or how would we petition a recall on this issue, it has occured to way too many customers. My vehicle reaks of mildew from the wet carpet and seat. I am loooking to get rid of this vehicle asap if this issue cannot be resolved and GM cannot step up to it's mistakes. Luz Padilla
  • gmcustsvcgmcustsvc Posts: 4,154
    I'm sorry to hear that this problem has resurfaced for you, lucylou27! We can be reached at socialmedia@gm.com (include your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation) if you would like to work with us at Customer Service (would entail working with a dealership).

    Sarah, GM Customer Service
  • We have been dealing with this leaking issue for the last 7 months. Took it to the mechanic 3 different times with no solutions. Now having yet another mechanic looking at it with no luck. He says sunroof tubes are fine. Just tired of dealing with water soaking back seat and floor. Any suggestions what we can do?
  • gmcustsvcgmcustsvc Posts: 4,154
    bullmoose10,
    Are you working with a GM dealership or a different shop? If the former, and if you would like for us to check into this further with your mechanic, please contact us at socialmedia@gm.com with more details (including your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation).
    Sarah, GM Customer Service
  • I just bought a 2006 g6 se1. It has no sunroof and I noticed the back seat was wet whenever it rained. I opened the trunk and discovered the sides the trucks floor liner to be wet as well ( by the cargo net area in both sides ). This is just after a quick observation but after looking it seems water is either coming in through the truck hinges or through the tail lights. Has anyone else experienced anything like this all I seem to find is sunroof issues mentioned.
  • gmcustsvcgmcustsvc Posts: 4,154
    rocket350,

    Sorry to hear that you're having this leaking problem! Do you have a plan of action for getting this checked into?

    Sarah, GM Customer Service
  • jsmith39jsmith39 Posts: 1
    So has anyone found any further details about GM and what they are going to about this. My girlfriend has a 2006 Pontiac g6 and the floor in the rear passenger side is always wet. This is ridiculous, they need to recall this problem.
  • amscottamscott Posts: 9
    No, it is very frustrating. GM doesn't make good on ANY of their mechanical issues. I called them several times, and went up to the management level and was told that since I was not a "regular" customer at their GM dealer they would not repair the problem. I wanted to do a class action suit against them.. there are enough people here that would join in, I'm sure.

    I also called them about the airbag recall because my car was doing what the recall stated and they told me my car was not one of the VIN# included in the recall… even though my car was doing exactly the same thing. They keep telling me to go to a GM dealer (who charges more than DOUBLE what a normal qualified mechanic charges)… I will NEVER buy GM again.. and I have posted every problem I have had on Facebook for the entire world to see. Hopefully no one will be scammed by GM again.
  • griff21griff21 Posts: 1
    I have the same issue, took the car to my dealer and the Sunroof drain had pulled apart. The mechanic said that they never put the extension tubes in per the TB.
    Called Gm after 3 weeks of NO call backs finally got a supervisor and she stated that it was mine was fixed sometime in Feb 2008. I said that is funny because the dealer could not find in the records were it was fixed, Gm says that after the fix there was a 5 year 40,000 mile warnty on the fix...I asked what date the car was fixed again and after some time she says Feb 4th, I said what was the mileage, again after some time, "it does not show the mileage" I said bulls***, every time you take you car in they record the mileage, even for oil change......She said they still will NOT fix the car. I said well even it was fixed in Feb 08, I brought it in 1st of May 13 and there is only 66,045 miles on the car and I bought in June 08 at almost 28,000 miles, so that means "supposedly" I am 3 months over the 5 years but under the 40,000 miles.........I requested another supervisor call me back!
    This is a load of BULL GM needs to step up and fix these cars and the damage to the rear seat and floor.
  • I'm having the same issue with mine - it's been leaking for about a year now, but I had not idea until the pieces of the puzzle started fitting together. GM should really step up to the plate here and recall / fix these common issue or as anyone else would call them: defects.

    I'm extremely disappointed with GM.
  • sodekesodeke Posts: 2
    I too am having this problem. I'm at my wits end! First my catalytic convertor goes out, I currently have a recall for the blinkers I need to take it into and this morning I discovered about two or more inches of standing water in drivers floor board and passenger floor board. I sucked out the water but it's smelly and ruined so much stuff! I too have the leaking stream out of my sunroof by the rear view window and now puddles of water. I'm not sure what to do as I know I'm not under warranty.
  • sodekesodeke Posts: 2
    Found this tutorial. Going to hopefully give it a shot. Sounds logical.

  • gmcustsvcgmcustsvc Posts: 4,154
    sodeke said:

    I too am having this problem. I'm at my wits end! First my catalytic convertor goes out, I currently have a recall for the blinkers I need to take it into and this morning I discovered about two or more inches of standing water in drivers floor board and passenger floor board. I sucked out the water but it's smelly and ruined so much stuff! I too have the leaking stream out of my sunroof by the rear view window and now puddles of water. I'm not sure what to do as I know I'm not under warranty.

    Hi sodeke,

    We're very sorry to learn of your frustration! We understand you've done some repairs yourself since you're outside of warranty. If this continues to be a problem, we'll gladly connect you with a dealership in your area that can assist. If interested, please do not hesitate to private message us your VIN.

    Amber N.
    GM Customer Care

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