[Vwdiesel] 1992 ECOdiesel

[dieseltdi at earthlink.net]

on 1/24/02 4:47 PM, LBaird119 at aol.com at LBaird119 at aol.com wrote:

> In a message dated 1/24/2002 11:06:48 AM Pacific Standard Time,
> wn5p at yahoo.com writes:
>
>> In my 1985 Jetta diesel, the glow plug lights when the air
>> conditioner in turned on. I have determined that there's something odd with
>> relation to the gauge package and older Jettas. That being said, I think
>> the only cure (once you've ruled out that there is a "real" problem) is to
>> replace the sensor, or replace the gauge cluster.
>>
>
> I had this problem in my 85 Jetta as well.  First thing that that helped
> was to drain the water separator.  Cleaning grounds, alternator connections,
> etc., also helped.  The final fix came when the glow plug relay stuck on.  I
> replaced the glow plug relay and never saw the glow plug light come on when
> it shouldn't, after that.
> Loren
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Since this 85 Jetta of Robert's used to be mine, I will comment.  This
problem has persisted through 2 different gauge clusters, removing and
cleaning all of the grounding posts that I could find, repeated draining of
the water seperator (I even disconnected the seperator wiring and one point
to see if that would keep it from happening).  New glow plug relay didn't
help either.  The glowing tends to happen ONLY when running the AC and
mostly when 1) the fan is on fan setting 3 or 4 or 2) on all settings after
the fan has run for some time.  I finally figured that maybe it was a the
fan motor's resistence increasing with speed and as the motor heated up.  I
was able to tell (by disconnection the glow plugs and looking for current)
that the glowing is not the result of voltage to the plugs.  Hayden

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    Now awaiting arrival of a  2002 Jetta Wagen GLS TDI,
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    98 New Beetle TDI (Charlie Brown II)
    98 Jetta TDI (Silver Arrow)
    98 Jetta TDI (daughter's car)
    90 Corrado (son's car)
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