so ... in my weekend of over-repairing (i love the compulsion thread, btw) ... i decided to dust off my multimeter and decided to look at my glow plugs ... AKA how diesel giant did them.

my dash glowplug light was fine ... everything worked great ... (i think), but was compelled to learn a bit more while i had an hour in the day

battery voltage: 12.5
running: 13.2

turned everything off, and checked each plug from the relay connector
everything was fine.
less than 1Ω on all 5.

plug the only plug back in ... nice and snug
go back into the house to deal with other things.

come back about 4 hours later to give it a cold-start ....
and the glow plug light on the dash no longer illuminates
i double checked the tightness of the connector
try again
nothing ....
i have not had time to look at anything else since then.
and I'm not even really sure where to look

did i fry something?
what testing should i do?

one solution finds 3 more problems.

geoff

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'81 300SD ---> '46 IHC Metro (some day)