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COOLANT LEAK 850 1996

posted by  BOOGIE850 on  Sun Aug 27 04:50 CST 2006
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last visit: Mon Sep 6 07:38 CST 2010
[RELATED]

Hi guys,

Last week, I had to refill my expension tank for the first time since I own the car. Now, I found a puddle of coolant underneath the engine and I'm trying to locate the source of the leak but I cannot exactly see it.

I removed the timing belt cover to check out the water pump, everything is totally dry in there. I removed the splashgard underneath the radiator, everything is dry in there too. I checked all hoses and clamps and everything is fine.

I found some little coolant drops under the oil pan & under the oil filter and it seems to come from 2 places on the front block behind the starter and behind the A/C compressor but I cannot locate from where the leak is coming from because of the intake manifold in the way.

Does anyone have an idea? Head gasket may be? cracked block ? yuck

My 850 is a '96 N/A with "only" 94K on the clock

Thanks mucho
--
Norm








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    COOLANT LEAK 850 1996

    posted by  someone claiming to be fixit 2003 on  Mon Aug 28 06:15 CST 2006 [RELATED]

    Trying to find a leak after driving can be tricky because the air blowing through the engine compartment and the aux cooling fan can cause the fluids to run all over the place. Let it idle after getting warm with the ac off to see if you can spot the source. The thermostat and temp sensor are right above where you've spotted the antifreeze along with the upper radiator hose connection.








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    COOLANT LEAK 850 1996

    posted by  someone claiming to be fixit 2003 on  Mon Aug 28 06:15 CST 2006 [RELATED]

    Trying to find a leak after driving can be tricky because the air blowing through the engine compartment and the aux cooling fan can cause the fluids to run all over the place. Let it idle after getting warm with the ac off to see if you can spot the source. The thermostat and temp sensor are right above where you've spotted the antifreeze along with the upper radiator hose connection.








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    COOLANT LEAK 850 1996

    posted by  KlausC on  Sun Aug 27 16:13 CST 2006
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    The 960s had problems with porous blocks, not the 850s. Head gasket failures are rare. Radiator hoses and the hose to the coolant bottle are really only good for 10-12 years, and I would check that first. You have an N/A, so there should not be a coolant line in the side of the block.
    I use a paper towel to try to find coolant leaks. You want the engine warm and not running, and the coolant under pressure. Just carefully wipe under any piping.

    Klaus
    --
    (V♂LV♂s 1995 854T, 1998 V70R)








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    COOLANT LEAK 850 1996

    posted by  MadeInJapan on  Sun Aug 27 07:17 CST 2006
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    last visit: Sat Oct 2 06:34 CST 2010
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    I'd say you have a cracked expansion tank. Lift it off and see if it's wet under it.
    --
    1998 S70 T5 Emarald Green Metallic (125K), 2004 V70 2.5T Ruby Red (45K), Previous Owner of Black '94 850 Turbo Wagon (Sold at 140K and miss her). My cars have been running so well lately they've got me worried.








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      COOLANT LEAK 850 1996

      posted by  BOOGIE850 on  Tue Aug 29 12:13 CST 2006
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      last visit: Mon Sep 6 07:38 CST 2010
      [RELATED]

      Nope, it's completely dry underneath
      --
      Norm








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        COOLANT LEAK 850 1996

        posted by  MadeInJapan on  Tue Aug 29 15:02 CST 2006
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        last visit: Sat Oct 2 06:34 CST 2010
        [RELATED]

        Then I'd follow the suggestion of Klaus...he knows his stuff really well.
        I had a small leak in mine and it ended up being the over-flow hose (small one) that runs down to the thermostat housing as a small amount of coolant was accumulating right below the thermostat housing area, towards the block. The clamp on the housing side was not holding it, then I discovered that the hose was just old and rotting. Changed it out and no more leaks.
        --
        1998 S70 T5 Emarald Green Metallic (125K), 2004 V70 2.5T Ruby Red (45K), Previous Owner of Black '94 850 Turbo Wagon (Sold at 140K and miss her). My cars have been running so well lately they've got me worried.








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          COOLANT LEAK 850 1996

          posted by  BOOGIE850 on  Thu Aug 31 04:40 CST 2006
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          last visit: Mon Sep 6 07:38 CST 2010
          [RELATED]

          I'll change that hose and maybe all hoses because I cannot locate where that leak is coming from, it's a pretty small one. I used my 500 watt halogen work light and I cannot see it whatsoever !
          --
          Norm







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