Im 99% sure I have 80A fuses. I will doublecheck though. The so if I
had a shorted plug it should read less resistance than the others? All
of mine read the same. Which I believe was 1 ohm, can that be right? I
think even new plugs I tested read 1 ohm
Marshall Booth wrote:
"Kaleb C. Striplin" wrote:
On one of my SDL's I noticed it blew the glow plug fuse. I replaced it,
turned key on, it blew again. I checked all the glow plugs and found
one that was physically broken. I replaced it, same thing, blew fuse
again. I checked all the plugs again and the resistance on all of them
was the same. None checked bad with that test. So for the time being I
installed a heavy wire in place of the fuse. This wire does heat up
while the glow plugs are running. So whats the deal? Could a glow plug
be shorted? How would I check that? I dont see any wires that look
bad. Am I correct in assuming the problem is between the relay and the
plugs, or the lines connecting the 2? Would a shorted plug show good on
a resistance test?
Could be a shorted plug (that will result in a resistace reading of
below 0.5 ohms, but to most meters, that's not much different than 0.5
ohms), a shorted wire to the plug, or that you got some 30 or 50 A fuses
rather than 80 A.
Marshall
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Kaleb C. Striplin/Claremore, OK
89 560SEL, 87 300SDL, 87 300SDL, 85 380SE, 85 300D, 81 300TD,
81 240D, 81 240D, 76 240D, 76 300D, 74 240D, 69 250
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