Sounds like your clutch is faulty or it may need adjustment.
When you arrive at a stop sign (or any prolonged stop whilst your engine is running) the cooling system can't handle the heat from the engine. But when you drive the air cools the engine
cylinder stop drag
because of ignition coil faulty.due to mountings,abnormal fuel pressure.
not enough octane in your petrol. To stop the run on, turn your engine off while it is in Drive. Then switch to Park
You can drive a car with a cracked engine block, but it will eventually stop running. The engine will go out completely after time.
When the check engine light is flashing and you continue to drive the vehicle you can do catastrophic damage to the catalytic converter. Stop the car, have it towed to a trusted garage for repair. The more you drive it, the more it will cost to repair.
to much of it can stop our system
It is idling. This is hard for an engine to do smoothly.
subaru legacy engine is switched off when stop after drive
Hard drive and monitor.
Could be incorrect oil for the engine, Faulty oil pressure sending unit, Engine is idling to low in drive, Engine has worn bearings, Engine has worn oil pump,
Until the engine self destructs and locks up. You do not drive a car with a leaking head gasket unless you want to destroy the engine. STOP running this engine until it can be repaired.