[s-cars] Not exactly S-car-related, but very Audi...

[Mark Strangways]

Any other means to measure the water temp ?
Maybe some sensor is lying to you, they will do that ya know :-)

T/Stat is about the only other think I would think it could be.

Mark
----- Original Message ----- 
From: "Eric Phillips" <gcmschemist at gmail.com>
To: <s-car-list at audifans.com>
Sent: Wednesday, December 17, 2008 2:33 PM
Subject: [s-cars] Not exactly S-car-related, but very Audi...


> Patient:  1991 90q20V Sedan, hereafter called "Lago".
> 
> Problem:  Coolant heats slowly in comparison to S-car and wife's 2.8L
> V6 Audi motor, but does finally get to temp.  BUT, gauge reading is
> dependent upon driving conditions - on the highway, the gauge barely
> comes over the thin mark before the fat mark that is generally
> considered "operating temperature" by any Audi owner.  Sometimes it
> hangs out below that thin mark.  In town, the gauge hangs out between
> that thin mark and the fat (normal temp) mark.
> 
> My first thought was a stuck open t-stat.  Replaced it with a good
> (tested in a pan of water on the stove) 87-degree t-stat, and guess
> what?
> 
> Same behavior.  Lago is sick, and I don't know the cure.
> 
> I surely have done SOMETHING wrong.  But what?  I seek the wisdom of
> other 5-cyl, 20V DIY greasemonkeys...
> 
> Eric
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