F 350 4WD Pickup V8-7.3L DSL Turbo VIN F (1994)
Certain 1994 F-250/350 and Super Duty Trucks 7.3L D.I. Turbo Diesel PCM Reprogramming or Replacement
TECHNICAL INSTRUCTIONS
PCM REPLACEMENT
Reference: 1994 Model Year 7.3L D.I. Turbo Diesel Service Manual Supplement - Page 03-14-5
NOTE
THE POWERTRAIN CONTROL MODULE (PCM - 12A650) IS LOCATED IN THE ENGINE COMPARTMENT TO THE LEFT OF THE
STEERING COLUMN.
1.
Open hood. Disconnect the battery negative cables (2).
2.
Disconnect the Powertrain Control Module (PCM) electrical connector by turning the 10 mm retaining bolt until the connector disengages from
the PCM.
3.
Remove the 2 nuts securing the PCM bezel to the dash panel. Remove the bezel.
4.
Remove inner fender retaining screws from the wheel lip opening and one bolt from the rear corner. Reposition inner fender to allow removal of
the PCM.
5.
Remove PCM.
6.
Position the new PCM in the dash panel opening.
7.
Install bezel and 2 retaining nuts. Tighten to 3.7 +/- .6 N-m (32.5 +/- 5.5 in.lb.).
8.
Connect PCM connector using the 10 mm bolt to fully engage the connector. Tighten to 4 N-m (32 in.lb.).
8.
Position inner fender and reinstall retaining screws and bolt.
9.
Connect battery negative cables (2).
10.
Check installation by starting the engine.
11.
Return vehicle to service
Owner Letter
Serial Number: 12345678901234567 94S84
Date, here
Mr. John Sample
123 Main Street
Anywhere, USA 12345
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
Ford Motor Company has determined that a defect which relates to motor vehicle safety exists in certain 1994 F250, F350 and F350 Super Duty trucks
with the 7.3L Direct Injection Turbo Diesel engines.
SAFETY DEFECT
When the engine of one of these vehicles is in the speed control mode and under heavy powertrain loading, as in the ascent of a steep grade, the
Powertrain Control Module (PCM) may not immediately respond to sudden reduction in powertrain loading as in a quick transition from climbing to
descent. This may result in increased vehicle speed for a period of a few seconds immediately following the reduction in engine loading, e.g., during the
initial descent of the grade. This could potentially alarm or distract a driver, possibly creating a risk of accident. A driver can apply the brakes of the
vehicle at any time to promptly reduce the speed of travel.
REPAIRS
At no charge to you, your dealer will reprogram the PCM, if appropriate, or replace the PCM with one of a new design. Dealers currently have
instructions and parts ordering information.
HOW LONG WILL IT TAKE?
The time needed for this service is about one hour. However, due to service scheduling times, your dealer may need your vehicle for one full working
day.
