Sometimes it won't start...

[JohanS]

Hey guys!

New to the forum, but hopefully I can get an idea of what's going on with my beloved Yaris!

The thing is that it sometimes won't start. If I leave it alone, for example during the weekend, it won't start on Monday morning when I'm leaving for work.

Everything sort of lights up, but the starter won't run. So, I therefore suspect I might have to replace the starter?

The other thing is, if I leave it alone for a couple of days/weeks it starts up again. It's like it needs resting, which is weird seeing I'm a very timid driver hehe. But that kind of makes me suspicious to the whole starter thing... I really have no clue, so hoping to get some help from you guys :))))

Do you guys have any thoughts?

[ex-x-fire]

What do you do to get it started when its acting up? Jump start it?

[JohanS]

No, I just leave it alone for a couple of days/weeks, and then it just starts again (using the "normal" start button). It's so strange, it's like it acts up for a while and then magically starts working again.

[JohanS]

Any idea?

[dogsridewith]

Battery terminals and connectors can grow lots of greenish/blue/white powder. They can also develop a sort of hard dark non-conductive crust.
Corolla also had a weak connector made out of a stamping w/ a rubber insert. It stretched and wouldn't tighten even if the bolt was tight.

[zoidberg444]

A really quick and dirty way to test if its your starter that's faulty and saves you having to do further tests on the wiring is to give the starter a few taps next time it won't turn over. My cousins Yaris had an intermittent no crank. I told her to tap on it with a piece of wood a few times and it started first time.