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Starter won't stop -- even if key removed!
Starter sometimes fails to turn -- sometimes won't stop turning.
The problem with my 2000 Sienna began as a zero response when turning the key to start the van. But with a second attempt the van would start just fine. This problem still occurs randomly -- not every time -- and I can live with it.
But now a new, seemingly-related problem has begun. When I start the van, the starter motor doesn't stop. It stays engaged and keeps trying to start the already-running engine.
If I turn the key to the off position, the engine will stop firing but the starter keeps working. Even more alarmingly, I can completely remove the key from the ignition switch and the starter keeps at it. By frantically re-inserting and turning the key a few times I can eventually get the starter to quit.
- Battery voltage 12+ with engine off. 14+ when running.
- Removed battery and had it tested at a local shop -- works fine under load.
- Battery terminals & cable clamps cleaned & in good condition. The positive clamp is brand new.
- The various electrical accessories work fine during all of this. Only the starter misbehaves.
The two components that I suspect are the starter itself and the ignition switch. But I'm not sure where to go from here.
Any ideas? Thanks!