94 FORD EXPLORER AUTO TRANS SLIPS IN DRIVE (DOESNOT SEEM TO ENGAGE) ONLY DURING FIRST START OF THE DAY. REQUIRES REVING THE MOTOR TO ENGAGE, SOMETIMES MORE THAN ONCE. WILL WORK FINE THE REST OF THE DAY NO MATER THE CONDITIONS. FLUID LEVEL IS CORRECT, TEMP, UPHILL, LEVEL, DOWNHILL, DOESNT SEEM TO MATTER. 182K MILES WITH REGULAR MAINTENANCE AND NO PREVIOUS ISSUES.