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HELP air-con drain pipe blocked

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by Overdose, Mar 21, 2009.

  1. Overdose

    Overdose New Member

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    I've been getting a mist through the vents and fogging up of the windscreen sometimes. I doubt its the heater core because I cant smell coolant and there isnt any coming through the footwells. theres only a musty dirty smell.

    I've heard this is caused by a blocked drain pipe but no one has said where exactly it is.

    I know it is around the gearbox but I had a look and cant see any pipes ending around there.

    the car is a VT 5L manual if that changes anything.

    also I was told that it can be blown out with a compressor but I'm not sure about that because it would come from inside the dash wouldnt it?
     
  2. accentstencil

    accentstencil Well-Known Member

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    It doesn't stick out like a pipe really, more of a hole with a grommet. It's a bit hard to find so a torch will help. It's up above the transmission, more on the passenger's side I think. When you find it, shove something like a cable tie up there to dislogde any crap. Avoid using anything metal like a screwdriver unless you are careful. Be prepared for a shower if it is blocked.
     
  3. 50LTRv8

    50LTRv8 Member

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    I just used a coathanger bent straight to unblock mine
     
  4. Overdose

    Overdose New Member

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    cheers guys, just waiting for it to cool down so I dont fry on the exhausts. I'll take a picture when I find it too.
     
  5. wrx884

    wrx884 WA's ASR Rep

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    let us know how u go man i get the same symptoms in mine except i get some coolent (not water) leakin out from the drain pipe only wen i use the air con. im thinkin its the heater core not sure how its doin that tho.
     
  6. Overdose

    Overdose New Member

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    drain pipe wasn't blocked, I have a picture if any one wants it.

    I read in another thread that you can take the plenum off the left hand side near the windshield and take out some mesh and tap open a vent.
    can someone please let me know exactly what to do?
    I pulled off one layer of that black plasctic under the wipers and couldnt see anything worthwhile. do I have to take the next layer off?
     
  7. sparkydude3

    sparkydude3 New Member

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    Im still having the same problem with my VR and photos would be greatly appreciated, ive jacked the car up and everything, still cant find the piping.
     
  8. savage1987

    savage1987 Donating Member

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    There will be one on each side of the trans tunnel in your VR I think mate, there is in my VN and both were blocked.
    I only found mine with the gearbox out completely and even then it took me a minute to work out what they were :p

    Look for 2 clam lookin' black rubber things poking out of your floor pan. Big enough to stick your thumb in.
     
  9. Rawiri

    Rawiri New Member

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    I am having issues with my vr ss, floor on the passenger side is getting soaked, I don’t know where to find the pipe.
     
  10. losh1971

    losh1971 Well-Known Member

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    It's under the passenger side towards the middle of the trans tunnel. It is basically directly under the edge of the heater box, in about 60mm from the edge of the radio. Don't go looking for two holes, the other side should be blanked off on the VR.
     
  11. wildfiremaint

    wildfiremaint Active Member

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    C444B0A3-ECED-40D9-97A1-FDBE9467FDAC.jpeg Yes, there is a rubber plug
    that you can remove on the left
    side of the water tray.
    Remove the plug and you
    can poke a long cable tie
    down the hole and can also clean out the water tray. See pic.
    Be prepared for water to come
    out when you remove the rubber
    plug.
     
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  12. Rawiri

    Rawiri New Member

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    Hi there thanks for your help, hope it’s not too much to ask but can you please walk me through to finding this please. Like will I need to remove the middle console to get to where need to see this. Thanks
     
    Last edited: Dec 5, 2018 at 10:46 PM
  13. wildfiremaint

    wildfiremaint Active Member

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    Hi Rawiri, shouldnt need to
    remove console. Get down low in the pass footwell and look
    in under the console towards
    under the dash with a bright
    torch. You can see the carpet edge in the photo I posted.
    Can lever under the edge of the grommet with small screwdriver.
    To replace push in on the centre of the grommet with finger.
    Cheers.
     
  14. Rawiri

    Rawiri New Member

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    B49CBE4E-8B59-478B-A3BC-08BEF0383E45.jpeg
     
  15. Rawiri

    Rawiri New Member

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    Hi there I have followed per instruction and no luck here’s a picture
     
  16. Rawiri

    Rawiri New Member

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  17. wildfiremaint

    wildfiremaint Active Member

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    It is where I am pointing. Look in there with a bright torch.
     

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  18. oska

    oska Active Member

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    here are some better pics the rubber knob comes off
    IMG (1252).JPG IMG (1253).JPG
     
  19. Rawiri

    Rawiri New Member

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  20. Rawiri

    Rawiri New Member

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