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-   -   Glow plugs... You tell me... (http://www.peachparts.com/shopforum/diesel-discussion/182883-glow-plugs-you-tell-me.html)

scoodidabop 03-20-2007 10:58 AM

Glow plugs... You tell me...
 
My glow plug light is not coming on. I tested all the plugs, and #4 was not giving me a continuity reading. I replaced it. All the wires from the relay to the plug are giving me a good reading. All the other plugs are giving me a good reading. The fuse on the relay checks out. I've got 12v running from the relay to the 5 glow plug output pins. Whenever I unplug the plug wires from the relay, I get the glowplug light via turning the key, so it's not the bulb...

When I'm in the car, with the come light on, the dome light dims until I hear the relay kick off, so I know the plugs are drawing some power.

What am I missing here?

BTW 1982 300TD.

Thanks

rrgrassi 03-20-2007 11:01 AM

Do you have a spare relay to test with?

Stevo 03-20-2007 11:12 AM

At this point I would bench test the GPs or pull the injectors and actually look down the hole. I've had GPs pass the continuity reading but still be bad.

scoodidabop 03-20-2007 05:12 PM

I don't have a spare relay....

I might just replace the other 4 GPs

Stevo 03-20-2007 05:37 PM

Quote:

Originally Posted by scoodidabop (Post 1456386)
I don't have a spare relay....

I might just replace the other 4 GPs

Sounds like the best plan, bench test what you take out and keep the good ones for spares.


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