GP Controller

[jaredob1]

Since I have had the truck, when the key is turned on, you can hear the gp controller clicking on and off and watch the voltmeter jump back and forth. I assume this is normal behaviour? Now..

I just finished getting the truck back together after taking the driver side head off to find a glow plug tip. My glow plug controller is smoking when the key is turned on, there is no more clicking, just smoke. I have temporarily pulled the black ground wire to disable it. I had it unbolted and out of the way for the previous job, but never took any of the wires off(except the ground where it hooks to the valve cover). What would cause it to smoke? I probably already toasted it, right?

If it is toast,

I was going to bypass the controller and put a switch in the cab like I have seen on here(this forum is awesome). I figured that would be the easiest/cheapest fix. I read that the switch should be on the ground side though. I looked through the write-up for the manual switch, but it still runs through the controller(if am am seeing things right). So I can only totally bypass it by running the voltage through the switch?

Thanks,
Jared

 

[jaredob1]

Guess I'll just put a switch on the hot side.....

 

[argve]

Run a wire from 12v positive to the switch, then from the switch to one of the small terminals on the glow plug relay (the one with I believe it's the red wire with the white stripe but don't quote me on the color of the wire - it's been a while), then run a wire from the other small terminal on the relay to ground. Then when you make the switch the relay is MADE and power will be applied to the glow plugs. Be very careful with a set up like this because you can burn out the glow plugs pretty easy if you over do the burn time on them. Then you will have no glow plugs and a no start condition. Keep the ON time to glow plugs no longer than 10 seconds before trying to start.