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SO then you must have 24 volt Glow Plugs? The big resistor reduces the volts down to 12v when the key is turned on to feed the Glow plugs. Without it the 12volt stock glow plugs would burn out quickly.

That is correct. You can just take the wires off of it and abandon it in place it you like. It wont hurt anything. If you tap off the firewall connection you can probably use the wire that that came off the resistor to connect to your relay. The way I did required a purchase of a large...

I removed and tossed the resistor(see the last picture) and bypassed the 24V busbar with a battery cable to the neg post of the back battery. My wait light also would come on and go out but did nothing since the glow plugs were bad it was hard starting. 1. all glow plugs were no good so I...

This is what the GP relay from CQ for the Civilian blazer looked like and is not the right part for these CUCV's

Okay mine is good to go. Thanks. I had Carquest cross reference NAPA ST85 and it crossed to their 56-2432. Box says it is called a starter relay. They also had a GP relay for a civlilan Blazer that did not look like the relay that came off. CQ 56-2432 matches in looks what was taken off. and...

What is the easiest way to determine if the GP relay I have purchased is an internal grounded one or not. I see all kinds to discussion about make sure it is but no discussion on how I can check it to verify the part that was sold to me was correct. Thanks :roll:

Thanks today went to start it and all the batteries are dead. Has to be this glow plug resistor bank. No battery issues before and all I did was replace all the GP and then this resistor bank started smoking. Hopefully once I charge the batteries and bypass it I won't have any other issues...

Okay somobody at a Army rebuild place said the book called it a a battery booster resister goes to the glow plug relay but still no idea on why it was smoking. The volts to the batteries was at idle alts are one 100Amp the other is a 60amp I think. Found it in the manual still looking to see...

Glow plugs were all no good I changed them all from stock to AC60A and it started right up. However I noticed that the charging gauge was in the low yellow zone on the gauge checked the batteries and low volts 11.8 from the alternators (both brand new) then I saw on the firewall behind the air...