[Vwdiesel] Glow Plug Relay troubles

[David Cook]

I guess that makes sense, though I would be surprised
if some of them would cause my symptoms.  This is like
the relay thinks I am turning the key on and off very
rapidly.

The relay doesn't actually care if the GPs are hooked
up or not, it'll turn on for the same amount of time. 
(As evidenced by my burned out GPs and subsequent
driving with the wire to them disconnected.)  I'd also
 be surprised if the temp wire made the relay think
that the switch was being turned on quickly.  

However, I did crawl down there and investigate the
ground wire.  When I pulled the ground wire to unplug
it, it simply slipped out of the terminal.  So, it
looks like a bad connection there.

I put a new terminal on (much more securely attached,
I should say) and started the car with no evident
relay issues.  We'll see what happens.  

If that fixes it, I'll be happy that it is fixed, but
mad that such a silly, simple thing cost me $45 worth
of new glow plugs!

David

--- Roger Brown <r.c.brown at ieee.org> wrote:

> Any of the connections to the relay being
> loose/intermittent can cause that.  I found the T 
> (temperature sender) input to be trouble prone.  I
> had a crack in the plastic relay socket near the 
> T terminal and it let the metal contact move as the
> relay was inserted:
> 	http://www.4crawler.com/Diesel/GlowPlug.shtml
> I found the Bosch relays to be the most robust.
> 
> -- 
>     Roger


David Cook
Red '86 Cabriolet Diesel Powered
Red '90 g60 Corrado 
Brown and White '78 Westy Campmobile "Bear"
and others in various states of disrepair
Pictures here: community.webshots.com/user/superdave5599

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