Ford TSP gives the following for your CELs:

Diagnostic Trouble Code (DTC) P0731/P0781 indicates gear #1 incorrect ratio. DTC P0732/P0782 indicates gear #2 incorrect ratio. DTC P0733/P0783 indicates gear #3 incorrect ratio. DTC P0734/P0784 indicates gear #4 incorrect ratio.

DTC P0750/P0751, P1751 indicates SS1 electrical malfunction. DTC P0755/P0756/P1756 indicates SS2 electrical malfunction. DTC P0760/P0761/P1761 indicates SS3 electrical malfunction.

Possible causes:

-- Internal Transmission.
-- Damaged solenoid.
-- Solenoid circuit open or shorted to VPWR or GND.
-- VPWR circuit open or shorted.
-- PCM damaged.


Also, the following was in the CD4E section:

Fluid Condition Check

- Make the normal oil level check as outlined previously under Fluid Level Check.

- Observe the color and odor of the fluid. It should be red, not brown or black. Odor may indicate an overheating condition or clutch disc or band failure.

- Use a clean, lint free cloth and wipe the dipstick. Examine the stain for evidence of solid particles and for signs of antifreeze (gum or varnish on dipstick).

Note:
Evidence of fluid contamination, breakdown, or improper fluid can cause poor shift quality. If the transmission fluid condition is suspect, drain the transaxle and replace the fluid wit MERCON® Multi-Purpose Automatic Transmission Fluid XT-2-QDX or MERCON® equivalent.

If particles are present in the fluid or there is evidence of contamination, the transaxle drain plug should be removed and a sample of the fluid filtered through a paper filter and examined. If transaxle failure is confirmed by further evidence of coolant or excessive particles in the fluid, the transaxle must be completely cleaned and serviced. This includes cleaning and flushing the torque converter (7902) and transaxle cooling system. During disassembly and assembly, all overhaul checks and adjustments of clearances and end play must be made. After servicing the transaxle, all diagnostic tests and adjustments listed in the diagnosis section must be completed to make sure that the problem has been eliminated.

96 Contour SE Duratec V6 24-valve 2.5L ATX 108,000 mi. Replaced: crankshaft w/ DMD, EGR valve (clogged), EVR, DPFE, PCV valve, evap emissions hose & tube (cracked), window regulator (broken), LH & RH PCV tubes, UIM gasket (leak), ignition coil