hit with hammer; batt clamps

My camry had the same thing, sometimes it would start fine a buncha times and sometimes it would click 20 times in a row. I kept a hammer in the car and smacked the starter if it wouldn't start for a while. I replaced my starter with a remand one and everything good now.

If it's the solenoid contacts, then if you keep turning the key on and off, it'll eventually start -- those contacts don't just die suddenly, at first it takes a couple-three tries, and gradually gets worse until you get tired enough of the problem to fix it.

While you're checking the rig, check the battery voltage, especially right after you've tried to start. Usually those 4-cylinder motors will start even with a bad cell in the battery (but they'll crank pretty slowly), but it's worth checking.

also the batt. clamps really suck on toyota for some reason, and since you said you had corrosion a bad connection on the batt. could also be possible--- sometimes its more simple than you think.

I smacked the starter with a hammer and got it started