PONTIAC GRAND PRIX GT 2004
MY 2004 PONTIAC GRAND PRIX GT KEEPS SHUTTING DOWN ON ME
WHILE DRIVING.IF I PUT IT IN PARK AND START IT BACK UP IT
USUALLY STARTS.TOOK TO MY MECHANIC HE RAN A SCAN AND
NOTHING SHOWED.SO HE PUT IN A NEW BATTERY NEW CABLES NEW
CONNECTORS AND CHECKED THE FULE TANK WITH PRESSURE AND
HE THOUGHT IT WAS FIXED.BUT I DROVE IT HOME AND IT DID THIS
AGAIN....DOES ANYONE ELSE KNOW WHAT THIS COULD BE ?