2009 Toyota Corolla - Won't start sometimes

Intermittently fails to start. Will start up again after a wait of 10 min. to 1 hour. 4 garages, including a Toyota specialist and a dealership, are unable to find a problem. Starter replaced with no effect.

Mine has had occasional problems with bad ignition coils. That’s the only starting/running issue I’ve had. Sorry I can’t help. Try posting in Maintenance/Repairs, you’ll get more views at least.