Posted by kopeck on August 14, 2008 at 08:21:13 from (72.43.56.181):
I'm having glow plug problems. These are 12 volt NJK plugs, three of them. When I have my key in the start position the plugs are running and draw the system down so far that the solenoid can't kick the starter in.
When I test the resistance of the plugs (all disconnected) at room temp they all read 0 ohms. So, then you hit the key your starting out with a dead short.
The resistance does go up, like it should, when they warm up. I've never seen plugs that start at zero though, usually they have a little resistance at all times.
Now what makes it interesting is when the switch is in the warm position there's far less a load, BUT in the warm position it includes a coil indicator in the dash. That would start the circuit out with a little resistance, which then allows the plugs to come online with out shorting the system out.
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