I HAVE REPLACED THE STARTER TWICE, THE COMPUTER ONCE, THE BATTERY ONCE. THIS LAST TIME HOSES WERE CHANGED AND FULLY CHECKED. IT HAS RUN WELL FOR ONE MONTH (THIS CAR WAS KEPT IN GARAGE ONE OWNER AND PURCHASED WITH 25,000 MILES ON IT 5 YEARS AGO) I'VE NOTICED THAT IT SLIPS OCCASSIONALLY BETWEEN PARK AND DRIVE BUT I CANNOT SEEM TO GET IT TO START AFTER GENTLY MOVING THE AUTOMATIC GEARS FROM PARK TO NEUTRAL AND BACK TO PARK. ANY IDEAS I CAN GIVE MY MECHANIC?