Cadillac Repair: NO OVERDRIVE?, tcc solenoid, service transmission

Question
HI I HAVE A 2000 DEVILLE THE SERVICE TRANSMISSION MESSAGE CAME ON I REPLACED FLUID AND FILTER AND RESET TRANS LIFE COUNTER NOW IT SEEMS I DONT HAVE OVERDRIVE AS FUEL ECONOMY HAS DROPPED AND RPMS ARE HIGH ON THE HIGHWAY. I CHECKED FOR CODES WITH A CODE READER NO CODES. TRIPLED CHECKED FLUID LEVEL

Answer
To test the TCC solenoid:

1. Maintain a speed of 60 miles per hour and while maintaining this speed, Slightly apply the brake pedal with your left foot and you should feel a slight bump and an increase in engine rpm's.

release the brake and you will feel another slight bump with a decrease in engine rpm's.