Quote:
Originally Posted by lostmarbles
That should glow to show you when your glow plugs are glowing.My 12V B diesel takes about 20 seconds of glowing before it is ready to be cranked. (When the engine is cold.) At the end of that time, the coil of wire inside the dash-mounted indicator is glowing bright orange.I'd get the glow system working before chasing other possibilities.
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Start by measuring the voltage across your plugs. You're looking for ~10V from the end of the plug to ground when the plugs are energized.
As for the indicator, I thought mine initially didn't work but I've learned that they really can't break: all of your glow plug current flows through there! If its not glowing, cup your hand and get close, its never bright even when working properly. If still nothing, take the indicator out, open it up and clean the coil off; mine had so much dust on it that you couldn't see it glow. If it still won't glow, then you have a problem with your glow plugs, probably a bad ground (and you should have failed the voltage test mentioned above).