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Also, I just changed the glow plugs but voltage was checked with a multimeter as well as a test light

yes voltage was taken with a multi meter, there's 3 red wires connected to the top of the relay, the top most one goes to the gp switch, then next one below goes behind the air filter to a rectangle looking thing(I guess this is the resistor, then the final red wire goes to the top bus bar...

I will upload pictures shortly, I just checked the voltage at the top of the gprelay and without the key in it was getting 12v and with the glow plugs switch engaged also 12v.

Glow plugs are getting 12v and just changed the glow plugs , still no start, checked the batteries both have 12.8v , also checked the volts going to the starter, that was 12v , is that correct? Fuel filter wasn't clogged

10-4, I will check the volts to the glow plugs in the am, if there getting 12v I will change the plugs , if not I will try to figuring the restistor thing out, while I get the new plugs I'll also throw a new fuel filter on to cross something off the list, I will report back the status after all...

Yes, you are correct , 1 red wire going to the switch it's a smaller one, 1 red to the bus bar , and 1 behind the air filter, truck had been converted to 12 volt. Bottom of the relay has 3 orange wires. (2) big ones and (1) smaller orange wire. Then a small black wire on the front middle of the...

Ok just checked the glow plugs they are getting power. However, the wiring diagram and what currently on the truck is totally different. Currently on the truck there are 3 red wires connected to the top of the relay, 1 goes to the positive term bar, 1 goes to i guess the resistors behind the...

10-4, One problem at a time lol Okay, so i would put the key in and turn and get nothing almost like it was completely dead, not spinning nothing. I tend to agree with what you said that maybe the PO hooked this relay up wrong. I will check to see if I have power to the glow plugs when the...

Thank you Matt5 for this , Engine runs fine once going never had a problem with the truck once running, just the startup, however, I did have a few times when i ran the truck for a while and then turned it off and it would not start back up this past summer, I would cut it off run inside to do...

also, what is that red wire for that is run from the top of the relay to the switch? Ive read almost every post on the manual switch and don't recall reading two wires running to the manual switch? I could be wrong as well, just trying to get to the bottom of this. It has been a pain to start...

When I first got the truck the guy told me to hold for 12-15 seconds so that is what I have been doing, 10-4 i will measure the ohms of the glows after work today. With the batteries fully charged when I attempt to start its sounds like its just about to kick over but never makes that final...

There is a controller card installed, however I believe he disconnected the light blue wire and ran a black wire from the front of the relay to the switch. So i guess the manual switch is the only way for the glow plugs to work. This isnt the first winter , However i have always had a really...

When i hit the switch i do hear a Clunk sound, glow plugs were checked with a test light and I do have (1) which is not working the other (7) light up the test light. Truck is very had to start and a decent amount of white smoke while cranking. Rebuilt starter was installed last month along with...

Good afternoon all, I have a quick question , I'm trying to figure how the previous owner wired the manual switch , I have read and watched all the videos on this subject and still can't figure out how he did it. The relay has a red wire that runs to the switch under the dash it's attached to...

Cucvrus, Looks like you were dead on, the back battery has a cracked terminal. Have not replaced yet but with your input on it, this must be the reason.

Good Morning! I have been having a new problem with my m1008 symptoms are as follows: Truck hasn't been started for 2 weeks, I needed to pick up some workout equipment from dicks about 9 Miles from my house, Truck starts right up no problem. Drive it for about 20 to 30 min down the road, run...

Is installing an eletrical fuel pump as easy as , just finding the section of rubber hose on the passenger side frame , installing a pre filter , then installing eletric pump and then just running that hose to the fuel filter? AND of course hooking up the switch to the ignition.

10-4 , I will replace all lines at least I know then , that half of the truck is taken care of, I would just need to address the leaking problem or maybe that might solve it

I will also do the clear hose trick to test that as well!