>> OK, what I was getting at was whether or not you had isolated the glow plugs before measuring, which it sounds like you did. <<

actually, your first guess turns out to be the right one: i pulled out the glow plugs and retested them, and found 3/4 to have around 15 ohms of resistance. having replaced them, she fired right up.

i don't exactly understand what i did wrong on testing them the first time.. maybe you
can explain the right way?

so thanks again.. i sure was happy when that thing fired so easily. drove home late at night singin casey jones.


j