When riding on hill engine start loosing power and speed. Engine shaking on 40mh on 1995 Ford Crown Victoria

Hi, I have a problem with my Ford crown victoria 1995. It was sitting about 1,5 years. So I replaced plugs, plug wires, ignition coils, fuel filter, clean MAF. So still have the problem when i riding on hill engine start loosing power and speed. And when I accelerate from 30 to 40 miles/hr engine hesitates and shaking. Any ideas? Thank You

by in Clinton, IA on March 16, 2014
2 answers 3 comments
ANSWER by , March 16, 2014
Check the fuel filter and fuel pump pressure/volume.
COMMENT by , March 16, 2014
Can it be bad switch solenoid in automatic transmission or oxygen sensor malfunction?
COMMENT by , March 16, 2014
You diagnose it and let me know what you find.
ANSWER by , March 16, 2014
Light on??
COMMENT by , March 16, 2014
No check engine light