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Overheating

Discussion in 'VZ Holden Commodore (2004 - 2006)' started by Ninjat1981, Jan 10, 2019.

  1. Ninjat1981

    Ninjat1981 New Member

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    Hello. I have a question for you about my 06 vz wagon. I look after it it's serviced. I checked the coolant and everything but today randomly my temp gauge spiked. All the way.
    Checked coolant and I took about a litre.
    I check my coolant all the time and in the 8 months I've had the car it's always been fine.
    Since this happen it seems to be burning through coolant somewhere. No leaks. Nothing from hoses yet I've put away 2 litres of coolant in it. Its all clear and no milk or muck.
    Also found this hanging down. Doesn't explain the heating but what is it....
    Any ideas?
    Really hope it's not the head as that makes no sense. Coolant level is always fine. I don't thrash it and it was serviced in November...
    Thanks for the help.
     
  2. 99notout

    99notout Active Member

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    Most likely a leaking heater tap, or cracked radiator tank, but could be as simple as a faulty cap.
     
  3. tml678

    tml678 Well-Known Member

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    As above, change your cap for starters. They lose pressure as they age which may explain the temp spike and perhaps the loss of coolant.
     
  4. Ninjat1981

    Ninjat1981 New Member

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    I filled it up last night. And it's empty this morning.. That's not cap is it? I've been told water pump but I can't find leaks
     
  5. tml678

    tml678 Well-Known Member

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    Not if it's been left cold overnight. What do you mean by it's 'empty'? If it's the overflow tank, then that's normal, as the car cool, the coolant returns to the radiator. If it's the radiator that's empty after filling then it's leaking from somewhere. Have you looked over the entire engine for evidence? Welsh plugs would be my next guess, they're harder to see. You presumably have coolant on your driveway if it's leaking that bad?
     
  6. Ninjat1981

    Ninjat1981 New Member

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    Welsh plugs was a other thing I was told. And I open radiator cap and have to put in about 500mls of water. I can't see any water anywhere. I have a vid but I can't post it on here for some reason.
     
  7. tml678

    tml678 Well-Known Member

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    You need a certain number of posts to be able to do that :/

    Probably time for a trip to mechanic, unless your able to DIY.
     
  8. Ninjat1981

    Ninjat1981 New Member

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    I can a lot of stuff but don't have the tools and I have a bung knee so I can't climb in and under like I used. I'm booking in with my mechanic.
     
  9. 99notout

    99notout Active Member

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    Where in Adelaide are you mate?
     
  10. Ninjat1981

    Ninjat1981 New Member

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    Elizabeth grove
     
  11. gungazza

    gungazza Well-Known Member

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    proberly need bleeding first warm it up check flor leaks
     
  12. 99notout

    99notout Active Member

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    Bit far for me to travel, sorry. I was happy to have a look at it for you. Make sure you pop the engine covers off and check around the heater tap, and also pop the radiator cover off and check the radiator for leaks, if your going through coolant that quick, it must be obvious.
     
  13. Ninjat1981

    Ninjat1981 New Member

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    Thanks I appreciate it. I know head gasket from a mechanic is expensive.. Money I don't have.
     
  14. 99notout

    99notout Active Member

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    pretty rare to have blown a head gasket on one of these, unless you cooked it. So look for the easy things (leak) first.
     
  15. Ninjat1981

    Ninjat1981 New Member

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    I'd be pissed if it was. But I've found a leak. But can't post vid as too big. It's right at the back of the engine. So probably Welsh plugs.
     
  16. Ninjat1981

    Ninjat1981 New Member

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    Here it is
     

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  17. DeanoV6

    DeanoV6 Member

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    Is it leaking from the thermostat housing at the rear of the motor? IMG_0806.jpg
     
  18. tml678

    tml678 Well-Known Member

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    That's gotta be the shiitest possible place to put a consumable part...

    Can it even be accessed with the motor in?
     
  19. Ninjat1981

    Ninjat1981 New Member

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    Nope it's fucked. Gotta remove the tranny. So a what 80 to 100 part will cost 400 ish in labour.
     
  20. tml678

    tml678 Well-Known Member

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    Sorry to hear that mate. That's a real backwards step from the front mounted thermostat on the ecotecs before it..
     

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