Hello everybody, I had to find this forum due to mystery that happened yesterday to my Lumina.
The starter wouldn't start without any previous signs of dying.
Since there were absolutely no sounds from under the hood, I went the following way:
A. +12V directly to the starter - works, starts the engine, everything is OK
B. Starter's relay fuse - the fuse itself is OK, but there's no voltage at this point when I turn the key to the "Run" position. +12V to this point - the engine cranks and works.
C. OK, it looked like the ignition switch (or the chip in the key) had died. Replacing the key didn't help.
D. Since I needed to go to work, I started the engine as described in "B" and rode.
What I noticed was that the "Service Engine soon" indicatior was lit all the time I drove.
E. Came to work. Turned the ignition off. Tried to start normally just because I'm curious
. The engine cranked, the "Service Engine" was off. Turned off, turned on - cranks, works. Once again - works. It's a kind of mystery
The question is - what happened?
Many thanks for all possible variants, I don't like to buy a new ignition switch and
disassemble everything without knowing for sure what was wrong.