[V6-12v] Radiator Fans not switching in correctly...

[James Whitehouse]

Tom,

Yes, it seems I will either have to buy a new one and see if it cures any of
the problems, or just have Audi test mine. Frankly, since they are £80 an
hour here, it would likely be just as cheap to buy a new one!

I think I'll assume for now that my water pump is also of metal design and
that, as such, it isn't breaking up and causing problems.

Cheers,
James

> -----Original Message-----
> From: Tom Christiansen [mailto:tomchr at gmail.com]
> Sent: 07 September 2006 04:13
> To: James Whitehouse
> Cc: v6-12v at audifans.com
> Subject: Re: [V6-12v] Radiator Fans not switching in correctly...
> 
> James,
> 
> In some cases the cap will rattle, but the brand new one I got from
> the dealer was of a different design that didn't rattle. The only way
> to know for sure is to pressurize the cap. Not surprisingly there is a
> tool for that. The pressure valve should open at 15 PSI (if I recall
> correctly). Your Audi dealer can help you with this (for a fee).
> 
> The water pump I bought for mine had a metal (brass) impeller.
> 
> Tom
> 
> On 9/6/06, James Whitehouse <james_whitehouse1 at yahoo.co.uk> wrote:
> > Hi Austin,
> >
> > Thanks, the car has been very slow getting up to temp in the last few
> > months, so I wonder if that could be a potential problem. I had just
> thought
> > the thermostat was getting dodgy, but perhaps the thermostat is a more
> > recent problem that's stuck closed and now causing the overheating!
> >
> > Is there any way, short of replacing it, to tell whether the coolant cap
> is
> > faulty? For example, should it rattle/not rattle if you shake it, etc?!
> >
> > Cheers,
> > James
> 
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