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Ill check it out now and let you know what I find. I did get the box out and it appears to be ok. Nothing looks burnt or broken but I am gonna clean it with air and reinstall it later as well. Thanks again guys.

I will order the wellmans now and will also check and clean the box. What does the starter relay look like and where is it under the dash? Thanks for the other info it is really helpful.

I have already changed the coolant temp switch and it did not help and I also unplugged it and no luck still. Alot of people say to go with ac delco 60g's and others say wellman 070. Is one better than the other? One of the plugs I pulled out had the tip(a very little piece about the size of...

I do hear the clunk of the relay engaging and the glow plugs get power according to my test light but only for two seconds. When I first got the truck the system did nothing at all. I wiggled some wires attached to the module under the dash(the little black box) and that is when it started...

I am trying to figure out which glow plugs to put in my blazer. I do not operate in cold weather conditions if that helps. Not sure if I can use regular ac delco 60G or if I need something different cause of the 24 volt system. Also when I turn my key on my glow plugs only stay on for about...