Doc
Full Access Member
Usually, after my "wait to start" light goes out (after 4-5 secs) I can hear the glow plug relay cycling away and the needle on my volt meter bounces with every click. Then, I noticed the other day that I couldn't hear my glow plug controller cycling and my volt meter wasn't bouncing. And after I had driven awhile, the truck was hard to start. I tried the cold water on the pump and that didn't help. I learned if I cycle the ignition switch 3 or 4 times the glow plug controller would start clicking and the truck would start right up.
So, I replaced the glow plug relay today. Now I get no relay cycling no matter how long I wait. The "wait to start" takes 9-12 seconds to go off and after it does finally go out, I can't hear any of the classic ticking sounds.
The new control relay had an "S" stamped next to one of the small connections and an "I" next to the other. I wired it up and I 'd sware I wired it correctly, but the old relay did not have any markings on it at all. Also, when I mounted the new relay I noticed the position of the terminals was different and my dual red wires were a touch too far from their designated terminal, but I finally got them one.
What I'm wondering is: If the glow plug controller relay goes out, does that classic "click" of the relay cycling go out, too? If the batteries get week does that make the controller relay stop clicking, but still cycle the glow plugs? Could I have fried the whole controller if I crossed up the wires on the relay? Can anyone send me a picture of their controller or explain which wires go where?
Oh, how do you test glow plugs? Maybe a shorted out controller kept them on too long and burnt them up. So, I need to find out how to test
I know this is a long post and I have a lot of questions. The problem is Big Red is down and I'm afraid if I don't get him fixed by mid day tomorrow it will get towed or broken into.
So, I replaced the glow plug relay today. Now I get no relay cycling no matter how long I wait. The "wait to start" takes 9-12 seconds to go off and after it does finally go out, I can't hear any of the classic ticking sounds.
The new control relay had an "S" stamped next to one of the small connections and an "I" next to the other. I wired it up and I 'd sware I wired it correctly, but the old relay did not have any markings on it at all. Also, when I mounted the new relay I noticed the position of the terminals was different and my dual red wires were a touch too far from their designated terminal, but I finally got them one.
What I'm wondering is: If the glow plug controller relay goes out, does that classic "click" of the relay cycling go out, too? If the batteries get week does that make the controller relay stop clicking, but still cycle the glow plugs? Could I have fried the whole controller if I crossed up the wires on the relay? Can anyone send me a picture of their controller or explain which wires go where?
Oh, how do you test glow plugs? Maybe a shorted out controller kept them on too long and burnt them up. So, I need to find out how to test
I know this is a long post and I have a lot of questions. The problem is Big Red is down and I'm afraid if I don't get him fixed by mid day tomorrow it will get towed or broken into.
