Quote:
Originally Posted by funola
"Can a poor ground cause the GPs to fail?"
The glow plugs are grounded pretty good to the head/ block. You mean from a bad ground strap? I would say no. That would result in less power to the glow plugs and they just won't get as hot as with a good ground.
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Yes.
I do not know one way or the other myself but he said the problem started after he changed his battery.
He swapped the Relay so it is also unlikey that 2 Relays would have the same problem
So I was fishing for what other type of electrical problem might cause the plugs to overheat.
I ask the bad ground question as I have read that a bad ground can burn out other electrical stuff (not only on Mercedes), mostly gauges and ect.
Also the other thing we do not think of is that in the Automotive Theory of Electricity Electrons flow from (+) to (-); we accept that for automotive use. However, the opposite is true.
With the Electro Theory:
"Electrons in the conductor will flow from
negative to
positive because of the displacement of negatively charged electrons in the outer rings of the electron shell of the material. These electrons flow away from the negatively charged source and towards the positively charged source.Electrons in the conductor will flow from negative to positive because of the displacement of negatively charged electrons in the outer rings of the electron shell of the material. These electrons flow away from the negatively charged source and towards the positively charged source."
The above Quote from,
Electron theory in applied electronics :
http://www.helium.com/items/1009209-electron-theory-in-applied-electronics?page=2
So in reality the current is flowing through the Ground Strap and block to the Glow Plugs.
So I was asking my question to see if anyone else has had the same GP problem and had found that renewing/cleaning the Engine Ground helped.