No heat

[Livolsi, Stephane]

Holy cow! Does anyone else have déjà vu?

This is almost identical to a post I made a while back (couple years or so), even blew out the heater core!!  I even asked the same questions about water pump.

FWIW, I suffered for a bit until my blower motor packed it in, then I replaced the blower and heater core and got my heat back.  I still don't know why it worked, because it doesn't appear the old core was plugged, but it did work.

I don't think you would want to hotwire the turbo pump because I'm pretty sure that it pushes the coolant in the opposite direction from the mechanical water pump.  The 2 pumps would be working against each other.

Stephane

> -----Original Message-----
> From: McCohens at aol.com [mailto:McCohens at aol.com] 
> Sent: December 13, 2003 8:15 PM
> To: quattro at audifans.com
> Subject: No heat
> 
> 
> My 5000 TQ has very little warm air.  I disconnected the temp 
> system and have 
> the flaps set to defrost only, coolant valve fully open.  The 
> A/C is unhooked 
> also.  I blew the heater core out today, thought it might be 
> clogged but not 
> so.  The hoses to and from the heater core are warm.  If the 
> fan is off, once 
> turned on it puts out warm air for about 30 seconds, then the 
> air is barely 
> warm.
> Could a bad water pump cause this?  I was wondering if the 
> impellers are 
> really worn maybe they don't move much water.  Also thinking 
> about hot wiring the 
> turbo water pump, which terminal would be hot to make the 
> pump work in the 
> correct direction.  Any ideas appreciated. 
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