Running hot

[Huw Powell]

You might want to test your radiator fan sender doohickey (if that's 
what you mean by "new temperature sensor then you're all set).

It's a two-speed fan, and "high" is pretty loud.  "Low" is not so bad, 
but if the sender is partly bad you might have high only.  That makes it 
louder, and also a bit hotter before it comes on.

The fan should almost never come on while you are moving, but idling on 
an 80F+ day it will cycle on and off every couple of minutes.

I'm wary of your concept of "superior", since you already put the wrong 
fuel pump in your car...

On 6/1/2015 8:23 PM, David Vanden wrote:
> It hasn't overheated.  I refuse to drive it until I at least get the
> radiator cleaned and install the new temperature sensor.  I removed the
> radiator from the car.  It seems to have a lot of gook inside.
>
> I just liked the idea of a superior radiator because I get annoyed with
> it not running cooler and with the cooling fan coming on so frequently.
> I figured if there was a way to quiet the cooling fan and not be so
> reliant on it it would be cool
>
> On Mon, Jun 1, 2015 at 8:01 PM, Huw Powell <audi at humanspeakers.com
> <mailto:audi at humanspeakers.com>> wrote:
>
>     This Nissen's:
>
>     http://www.partsgeek.com/catalog/1987/audi/4000_quattro/cooling_system/radiator.html
>
>     is what people have been using "forever".  Direct fit, but does
>     require a "universal" corrugated top hose since for some reason the
>     hose nipple is a couple of inches further from the engine.
>
>     I cut two original hoses and joined them with a stainless steel
>     barbed fitting, but that's not necessary, it was just fun to do.
>     And cheaper.
>
>     I don't know if people have used the other radiator shown there.
>
>     Has your car overheated yet?
>
>     - Huw
>
>
>     On 6/1/2015 6:26 PM, David Vanden wrote:
>
>         This question may be perhaps rhetorical but did anyone install a
>         Flex A
>         Lite universal fit radiator, see significant improvement, and do
>         so without
>         spending a lot of money on mounting hardware?
>
>         On Sun, May 31, 2015 at 11:57 PM, Andrew Buc <abuc at andrewbuc.com
>         <mailto:abuc at andrewbuc.com>> wrote:
>
>             Your 4kq is old enough that the odds are pretty good it
>             needs a new
>             radiator. I had the radiator on my ’87 4kq replaced 2 or 3
>             years ago. In my
>             case, the issue was coolant loss, not overheating (I started
>             carrying jugs
>             of coolant in the trunk and topping up as needed), but still.
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