I have a 1991 Volvo and recently replaced the turbo charger. The car runs like a dream but about 5 minutes or so into the drive, the car will like go into neutral and stop. I turn the car off, wait for about 5 or 10 minutes, start it up and it drives again for a couple more miles. Any thoughts as to what this could be?

 

Does the car stall or when you hit the gas the engine just rev's?