Conventional thinking is that current is the flow of electrons from negative to positive. The purpose of the grounding kit is to eliminate potential differences ideally there shouldn't be any current flowing in the ground system.
My guess is your glowplugs are already toast. You should do the harness and the control box before you replace the GP’s. If you have bad grounds and / or a bad box the GP’s will burn up no matter how new they are.Hi there, new to the forum. Purchased the same Kascar wire harness and will be cleaning the existing terminals and installing the Kascar over the weekend. I have the flickering lights and gage issues to say the least.
My biggest problem is cold hard start. Did replace the glow plugs, put a block heater, etc. and still won't fire up right away!! Once I deal with the grounding, I'll then proceed to disconnect the battery and install a replacement controller. (I think my Nartron white label smart start system is still ok) I'm hoping these couple of quick and easy steps can help remedy the problem. Shouldn't have these issues firing up when the weather is only 45 degrees.
Anybody have some input regarding my plan? Other suggestions? P.S. gonna replace the thermostat, seal, flow control switch, and radiator cap shortly after.... simple jobs turn into projects man! (1990 M99
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