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I can rest a little easier now confimation on GP card...burned out like doghead said I just wired in a pushbutton starter switch and relay works when I want, less room for mechanical/electrical failure....good stuff from a previous thread I can also update that the tranny shifts normal...

Glow plug module? could glow plug module be source of all problems.... I went to napa to have them test GPR (first one from truck...original) because it has 12v on top big post and both small posts when connected at truck, they tested it and couldn't get the click, hence forth it is bad...

Should glow plugs be hot all the time while truck is running? If not, what tells the relay to kick off?

I will do more wiki checks tomarrow and also those suggested in the crash-af post as far as 24v on large wire from resistor, i dont know....will check tomarrow it's funny how this is all working...i dont know or really understand electricty, I got the basics. I have a couple buddies that...

I changed relay because it didn't click and truck didn't start, it was the first time it didn't click so I messed with it and figured it probably went bad. Yes, the engine is cold when measuring voltages, but because the solenoid doesn't (click) I have no voltage to GP. orange wire was on...

napa couldn't tell me if it has an isolated relay coil...so I will have to trust that the info in the faq section of this forum is accurate. I am also curious about the thread indicating the small orange wire on relay needing to be placed on opposite big post (lower one) (diagram is wrong). Can...

thank you the napa relay i'm running is in the faq section of this site....cheap version of the usable models! It is simple what I need... a working example listed in english, not TM jibberish. The manuals do give you an idea of how stuff goes, but are ridiculous compared to real schmatics... I...

can someone please list the colors of wires and location of wires on glow plug relay. I'm running 109(napa cheap model) relay and I have a wait light but no 12V on bottom post of relay. On third new relay now and still no (click)..Help:-D The weather is cold now.....I need warm plugs