[Vwdiesel] Glow plug light issues

[Val Christian]

This may not be your problem...but I've had similar symptoms and found
that the relay was cycling on while driving.  You'll go through glow plugs
real fast, if that happens.  In the several instances I've seen, it's
usually something like water leaking into the glow plug relay package.

With A1s, there seemed to be more problems with the relays simply
failing. Perhaps not that the relay was different, but rather
manufacturing problems, or simply bad luck.

You might be able to detect whether the glow plugs are infact coming
on by noticing whether the inside dome light, or at night - headlights,
dim when the glow lamp lights.  I've also had a relay cycle the glow
plugs without lighting the lamp.  So the lamp and the energizing of the
glow plugs are not necessarily coincident.

My vote is to swap out the relay.

Val

>
> Hi Guys
> I have a problem with my glow plug light, 1987 Jetta diesel (260k miles
> original), the light sometimes flashes, sometimes glows faintly, sometimes
> lights up bright as if cycling the glow plugs. I have drained the water
> separator, no difference. It usually happens after driving half and hour. I
> have removed the glow plug relay while the light is on and it still
> persists, what relay controls the water separator blinking? Or does anyone
> else have any suggestions? The car starts fine despite being -20C lately, I
> cannot complain, just annoyed by the light!
> Thanks, Greg
>
> _________________________________________________________________
> The new MSN 8 is here: Try it free* for 2 months
> http://join.msn.com/?page=dept/dialup
>
> _______________________________________________
> vwdiesel mailing list
> vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
>