electric auxiliary cooling pump

Bernie Benz b.benz at charter.net
Tue May 25 22:35:22 EDT 2004

> From: "Dan Wing" <wagons at sover.net>
> Date: Tue, 25 May 2004 21:24:22 -0400
> To: <200q20v at audifans.com>
> Subject: electric auxiliary cooling pump
> The central plastic nipple on my auxiliary coolant pump broke, puking my
> coolant. It may have broken because my fan fuse had corroded and burned out,
> and my fan did not come on, so the pressure in the system got too high, and so
> on.
Most unlikely!  More likely, your hired wrench stressed it in gaining access
to whatever else he thought was worng in whatever other symptom he was
chasing.  Hate to admit that I've been running without a good aux thermostat
for years now.
> Anyway, we THOUGHT a used VW V6 pump sitting over in the corner would work
> until we saw that the VW pump, otherwise identical, had a different connector.
> We stuck it place, anyway, just to plug the hoses until I can get a correct
> pump.
Hook up the electrical side also, it should work just fine.
> How much difference would this make (nonoperating auxiliary pump) in the turbo
> cooling? 
No difference, unless you are one to drive high boost just before turning
off the key.
> As it is, I am restricting my driving to non-boost to keep things
> nice and cool, and I will have a new pump in a couple of days (I am going to
> prophylactically change the heater valve, too).
Prophylactically!  A pornographic change?

> I do notice that the heater is
> still working, and I thought that heater coolant supply was another
> beneficiary of the auxiliary pump. Some references I have seen indicate that
> the pump only runs in certain circumstances, anyway.
Not unless you want to run the heater after shutting down. This might be
> Anyone driven without one?
Never with less than two!

Bernie, In good form tonite.
> Dan Wing
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