so my car wont start.. but wait!

[AL GReeNeRy]

ok tried a brand new interstate battery, same thing. load tested my optima, 12.7v still good. im guessing my wiring is screwed up or possibly a relay? maybe im missing a ground somewhere? i know the 3 wires on the starter are correct and the starter itself is good; its brand new and it starts up everytime right after i get it running. when i get the no start problem it really feels like the starter isnt getting enough power. the wiring harness came from a 92 325is auto if that helps..

[k_wakasugi]

Hah wow, I had the same exact problem on my 240. One day after re-grounding everything , the problem stopped. I haven't had a problem since (~ 6 months).

[dpgrand]

I would check your grounds next.

[k_wakasugi]

I would check your grounds next.

lol, that made me laugh. Yeah... that's what I was implying.

[dpgrand]

well that makes two of us.

[AL GReeNeRy]

grrrr. i knew i was missing something. i have the ground from the pass motor mount arm to the body. what other grounds were there? tranny to body, starter to body? i might just ground everything lol

[slo325i]

If the problem is intermittent like that, the problem is usually more electrical rather than mechanical.

Justin