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    Thread: Random coolant leak please help

    1. Junior Member Habisch137's Avatar
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      10-05-2012 02:38 AM #1
      hey guys i parked my car tonight and after i moved it into the garage i saw that there was alot of coolant on the street just all of the sudden my car has started to leak, ive tried to follow the leak back but i cant seem to find a hose where its comming from i have had y waterpump done so im hoping its not that any info ? heres some pics, the first pic is where the leak is coming from there is a decent sized pool at the bottom where my belts are kind of collected on the wheel well.



    2. Member ps2375's Avatar
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      10-05-2012 03:08 AM #2
      That looks like water pump location. You should be able to look up at it and see if it is the pump.
      Tradition is the art of making the same mistake repeatedly, on purpose.

    3. Junior Member Habisch137's Avatar
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      10-05-2012 03:47 AM #3
      Gahhh that's what I figured I was doing my best to trying and circle back to the leak with my flashlight in the pitch black I'm going to take another look in the morning just to make sure.
      Thanks for the reassurance haha

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      10-05-2012 09:45 AM #4
      Water pump, thermostat, and/or hoses in that area (there's a bunch). You've just gotta get under there and look.
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    5. Junior Member Habisch137's Avatar
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      10-05-2012 01:11 PM #5
      Yeah Im getting into the shop today to get it up in the air and take a look, I've got an exhaust leak as well right at the catalytic converter seems like water is dropping out whenever I start her up anyway that's related ?

    6. Junior Member Habisch137's Avatar
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      10-06-2012 07:57 PM #6
      Got under the car took some pictures today looked like the coolant was leaking out of a seal somewhere on the pump, would be nice if i could get a second opinion thanks




    7. Member ps2375's Avatar
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      10-06-2012 10:00 PM #7
      Not to be too critical, but those pictures don't really have the waterpump in them. They are only good enough to show that you do have coolant leaking. You will have to look up at the shaft to see if it is the pump seal or a gasket on the pump housing or the pump body to block that is leaking.
      Tradition is the art of making the same mistake repeatedly, on purpose.

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      10-06-2012 11:49 PM #8
      Yeah, those pics don't tell much. The leak is definitely in the water pump area, but it could also be a hose or thermostat, as they're all close together.

      Look up at the water pump pulley, remove the splash shield first. The weep hole is right behind the pulley. It may be hard to get a good picture of, but you should be able to see it.
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    9. Junior Member Habisch137's Avatar
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      10-07-2012 05:53 PM #9
      haha my bad with those pictures so i had a couple more pictures i did take that still aren't the best but ill upload them anyways just incase they catch your eye by chance, im getting under the car again tonight so i will take some better ones if i dont find the leak myself, oh and just some info i figured out that the car doesn't leak a lot till its almost at running temperature wich to me hints at the thermostat but also it starts to leak more when it is driving and then sits.. so im a little confused anyways heres the pics ill get some more tonight. oh and thank you in advance


      this was after it wasn't running for awhile and i couldn't find any coolant higher then this point at the time


      theres some coolant on the ride side of it if you can somehow see that haha :/

    10. Member ps2375's Avatar
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      10-07-2012 08:28 PM #10
      Based upon what I see from your last pics, I would say to check the pump to block seal. That means pulling the alt and AC compressor. You should be able to move the AC compressor and remove the acc bracket. Then you should be able to see where the leak is from. The weep hole at the pump looks dry.(In the first of the 2 pics, just above the freeze plug type thing in the pump.)

      Well, upon second closer look, I could be wrong.
      Last edited by ps2375; 10-07-2012 at 08:34 PM.
      Tradition is the art of making the same mistake repeatedly, on purpose.

    11. 10-07-2012 10:05 PM #11
      Try looking around under there with the engine running (be careful). It would be nice to see the drips as they happen.
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      10-07-2012 10:06 PM #12
      Leaking more when running (hot) makes sense because the system is under pressure then, not when cold. You need to get a pressure tester and pressurize the system.

      The water pump looks pretty new, when was it replaced? How often do you have to top up the coolant?
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    13. Junior Member Habisch137's Avatar
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      10-08-2012 09:58 PM #13
      Ok so I've only had the car for about a month now so I got ahold of the previous owner and he said that prior to the pump being done 2 months ago it was also done 8-9 months ago along with the thermostat under warranty I did ask him if he ever did run G12 and he said no so its always been the green garbage running through the system ! Just some more info for you guys! Oh and I am getting it up on an actual hoist tomorrow in my auto shop so should give me more room and light to find the leak I'll take some pics aswell

    14. Member ps2375's Avatar
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      10-08-2012 10:26 PM #14
      the green stuff is just fine, as long as it isn't mixed with the G12
      Tradition is the art of making the same mistake repeatedly, on purpose.

    15. Junior Member Habisch137's Avatar
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      10-09-2012 11:06 PM #15
      Sooooo apperently my Gti is a bit shyy lol I woke up this morning to leave and there was no sign of leaking overnight like it usually does so I figured oh well it will leak when I start to get it up to temperature so I drive all the way to the shop and there is still no leak so didnt want to waste time getting it on the hoist with no leak I continued on driving for another 20 min or so still not a drop figured what the heck got it up in the air and no sign of leaking... so I couldn't not find the source of said leak I guess I will wait till it magically appears again and hunt it down!

    16. Junior Member Habisch137's Avatar
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      10-18-2012 02:19 PM #16
      So just an update After the day it stopped leaking after I got home it did start leak in again so i took the alternator and ac compressor off and saw the leak so I took the water pump off and it was leaking from the block to pump seal so thanks for all the help guys!
      Last edited by Habisch137; 10-18-2012 at 02:21 PM.

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