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Hello, I'm back with another question! My glow plugs are working great, starts fine after waiting for a click; glow plug solenoid. Have to listen for the click because the (wait to start light) doesn't work Any idea where to check for the wire that goes to it?

I think the difficulty in cranking it when it's warm is fuel backflow somehow I'll probably just try to find anti-backflow valve to put in the fuel line close to the filter.

I understand no problem I'll probably just put a heavy duty switch in the middle of the battery lead to the relay for the glow plugs cut the power completely to that relay until I will need it.

It does have a brand new fuel pump and filter in it.

Hello, I've got another possible issue! Since i took out the resistor, the truck now seems to be running the batteries down some when it sits for awhile,(6+ hours)! ALSO, when the truck is good and warm, it cranks good but has to crank for an extended time to fire up!

doghead, I saw those pics and yes thats what my truck has going on!! Thanks for ALL the help. I am brand new here, so thanks again!!!

I have a block on the firewall behind the air filter, that is in the middle of the supply cable from the battery to the GP relay. It is on a bracket plate mounted to firewall!

Ok, Dog head, were is that? I will try removing it to see if that works!

Low power to glow plugs I can add that each time I tried a new GP relay, It had to be special ordered, ie; listed as GP relay only!

Low power to glow plugs Well, right now I can tell you that the glow plug out put side is 2 orange heavy gauge wires,one to each side of engine. Factory spliced to the green glow plug wires. Tested input side voltage with battery tester. But friends tester broke before testing out put side...

Low volts to glow plugs.. Sorry, didn't realize it posted twice! Any Ideas I could try?

Hello. I have an 85 army blazer that I can't seem to get enough power to the glow plugs. I have tried 2 different glow plug solenoids, with no luck. It has been changed to 12v, so I'm wondering if that has any thing to do with it! I'm getting 12v+ to input side of glow plug solenoid but not on...

Hello. I Have an 85 military blazer that I can't seem to get enough power to the glow plugs. It's already been changed to 12v system. I'm getting 12+ to in put side of glow plug solenoid, just can't get enough on out put side. What do I need to do? Any help would be appreciated.