update on cockpit suddenly filled with steam

[Huw Powell]

http://audi.humanspeakers.com/me.htm

See that white box I am smashing with a crowbar, which is behind the 
firewall?  That where the fresh air enters the HVAC system.  It is drawn 
from the high pressure zone at the rear of the hood/front edge of the 
windshield.  And it is, or should be, sealed off from the engine 
compartment.

This is the case with many if not most cars and trucks.

On 8/16/2012 10:36 PM, Cody Forbes wrote:
> Where's the fresh air intake for the HVAC? It MIGHT be picking up engine bay steam, but I highly doubt that and think Huw is right.
>
> -Cody Forbes
>
> On Aug 16, 2012, at 10:20 PM, Huw Powell <audi at humanspeakers.com> wrote:
>
>> No, your heater core is also shot.  The fresh air inlet is isolated from the engine compartment (or should be), so that steam can only come from one place - the heater core.
>>
>> Obviously, yes, you also have other cooling system issues that need to be rectified.
>>
>> On 8/16/2012 9:18 PM, Bill Pirkle wrote:
>>> Filled the reservoir with coolant and started to car (85 audi 5000)
>>>
>>> When the temp needle was  about vertical (about 3 minutes) steam began
>>> to come out of the heater vents.
>>>
>>> Shut off the engine and noticed that coolant was leaking on the drive
>>> way. Dripping pretty bad. It empted to reservoir in about 10 minutes
>>> even with the engine not running.
>>>
>>> Dripping was just  behind the steering but the radiator and reservoir is
>>> toward to front but drops can run all over the engine before they
>>> finally hit the driveway.
>>>
>>> So I think that there is a major leak in the cooling system that is a
>>> completely different problem than the leak in the heater core. This
>>> major leak causes the engine to overheat which produces the steam that
>>> comes out of the vents in the cockpit.
>>>
>>> Now to find it.
>>>
>>>
>>> Bill Pirkle   KE7JIA
>>> "When ideas fail, words come in handy"
>>>
>>>
>>> -----
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>>>
>>>
>
>
> -----
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>
>