One problem related to manual transmission has been reported for the 2003 Ford F-250. The most recently reported issues are listed below.
When taking off from either a stop sign or light vehicle failed to accelerate forward properly. This caused the vehicle to stall at an inopportune time. Its was an ongoing problem. Consumer took vehicle to dealership 6 times in 1 1/2 years, and was informed by dealer that problem was low rpm power, which was poor torque, and an improper gear ratio in transmission. The consumers foot contacts the accelerator pedal hanger when attemptingto depress the pedal to the floor. The engine runs rough at idle 750 rpm causing the vehicle to vivrate. At speeds between 750 and 1000 rpm the engine will not maintain a constant speed. Speed fluctuates up and down rapidly. The engine produces very little power at low rpm's below 1500. . Read more...