[DavErb]

If this was a water cooled car I'd say it was a problem with the cooling like a partialy blocked radiator.

It really sounds like something is overheating. When the car is moving fast the airflow is enough to keep the part cool enough to function but when you are stopped the part overheats. Then it cools and is able to function again.

Will the engine still crank but not fire when this happens? Is Buenos Aires still very warm this time of year?


Perhaps the ignition coil is starting to fail? An oil thermostat stuck closed so the oil is overheating?

Need more details .