I don't doubt your jetta but is it the
same sensor as the Vanagon, I don't
think it is.

Additionally we are talking the temp
gauge sensor and not the temp2 (which is
similar to the ecu sensor you mention)
which are a bit more prone to fail in
the Vanagon...but the shops say seldom a
new one!

Shawn

> -----Original Message-----
> From: Allan Streib
> [mailto:streib@cs.indiana.edu]
> Sent: Thursday, November 29, 2007
> 12:19 AM
> To: syncro.carboncow
> Cc: vanagon@GERRY.VANAGON.COM
> Subject: Re: Changed thermostat - temp
> gauge still reads stone cold
>
>
> On Nov 29, 2007, at 12:05 AM,
> syncro.carboncow wrote:
>
> > I would disagree. Good for a couple
> of
> > years? They often go 15+ in our
> vanagons
> > before failure!
>
> Well maybe I had a string of bad ones.
> I owned my Jetta for about 10
> years, and in that time I replaced the
> ECU sensor at least three
> times and the gauge sensor twice.  The
> failure modes were very low
> reading on the dash gauge even with
> the engine fully warm, or very
> hard starting of a cold engine but a
> warm engine would start easily.
> In my PERSONAL experience the sensors
> are a definite weak point.
>
> > Again I've talked to the sources and
> > although the failure of a new sensor
> is
> > not impossible it is uncommon.
>
> I missed that part of the thread; I
> agree if the sensor has recently
> been replaced it's POSSIBLE, but not
> likely, that the new one has
> already failed.
>
> Allan