Strange Start

[Jersey4x4]

but remember its just activating the 24v solonoid on the starter, not feeding the starter.

That is correct and it somehow also sends power to the glow plug control card to power the glow plugs while cranking.

 

[CCATLETT1984]

but remember its just activating the 24v solonoid on the starter, not feeding the starter.

That is correct and it somehow also sends power to the glow plug control card to power the glow plugs while cranking.

thats not quite true. the gp card is activated by the ignition swith and is just 12volts. it completes a ground and that trips the Glow plug relay under the hood. The relay then allows electricity to flow through the large resistor on the firewall and to the glow plugs. When cold the resistor takes 24v and drops it to ~18volts as it heats up it drops down to ~12volts. (this allows the plugs to heat up fast and to be jump started by a 24v truck)

 

[res0wc18]

so were all agreeing that GM part number 1559178, is the only thing to replace with this type of thing. Im trying to replace pretty much everything on the starter system that i can since i bought a brand new gm starter for it i want it to stay alive. Get what im saying? Is there any other parts i should replace?

 

[res0wc18]

is that all there is to replace besides the starter then? there is no starter solenoids on the fire wall or anything?

 

[res0wc18]

any body have any other things to add that i should replace before i put my new starter in???

 

[CCATLETT1984]

the solonoid on the gm trucks is on the starter, there is no other parts to worry about. you can check the condition of the positive cable running to the battery but its prolly in good shape.