My 1993 Touring Coupe 4.6 hesitates when I attempt to accelerate at cruising speed or whenclimbing a hill.

A new tank of premium gas did not help.

Before this problem started, I had replaced the fuel filter, oxygen sensors, spark plugs,and wires.

There are no codes registering any problems.

Any suggestions or advice would be greatly appreciated.

Thanks.

 

Check fuel pressure.