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1999 - 2003 Ford E-250/350/Super Duty Internal Module Installation ...http://www.gopowerhungry.com/.../Int...%20Install%20- ...

1999 - 2003 Ford F-250/350/Super Duty
Internal Module Installation Instructions
Before going any further,
**REMOVE KEY FROM IGNITION**
We will not be responsible for any damage to the PCM
caused by leaving the key on during installation
Open the hood and locate the computer (PCM) harness connector. It is located on the driver's side firewall, beneath the brake
master cylinder and next to the fender. The connector is rectangle shaped, approx. 1" x 6" with a 10mm bolt in the center. Using
a 10mm socket, remove the connector from the PCM. The bolt is attached to the connector and DOES NOT come out.
From beneath the dash locate the PCM. It is mounted next the parking brake assembly. Remove the two (2) bolts that hold the
PCM case to the mounting bracket and set aside. Grasp the rear of the case, shift it to the right (towards the center of the
vehicle), and firmly pull away from the firewall.
Remove the PCM from the case. Remove and save the gold colored ground tab from the plastic case. Also remove and save the
black plastic cap from the rear of the PCM.
Many PCMs will have a coating of lithium (white) grease covering the connector. Remove the grease using a cloth or paper
towel. There will also be a coating of clear silicone covering the connector.
Use the provided Scotch-Brite® pad to clear away the silicone. Acetone (nail polish remover) helps to clean the connector. (Note
- DO NOT USE CARB CLEANER OR LACQUER THINNER!! Damage to the PCM can result!!) BOTH sides of the connector
must be cleaned thoroughly. If you are cleaning the connector and begin to see copper, you are cleaning too far. This may result
in a poorly fitting or “loose” module.
Failure to properly clean the connector may cause the vehicle not to start and/or may damage either the module or the PCM.
Any module that has failed due to improper installation WILL NOT be covered under warranty. Please note: 95% of all tech calls
can usually be traced back to poorly cleaned contacts. Please take your time and clean the PCM connector thoroughly as it will
save you unwanted headaches down the road.
It is recommended that you open the PCM case by removing the 6 case bolts with a 7/32” socket. This allows complete access
to BOTH sides of the connector to ensure that it is clean. The PCM circuit board is sealed and is quite robust. However, to avoid
damage from static discharge, it is recommended that you avoid contact with any of the internal components wherever possible.
Once completed, reassemble the PCM case BEFORE installing the module onto the connector. This ensures that you do not
accidentally install the module upside down.
Fasten the module to the PCM using fiberglass duct or packaging tape. Reinsert the PCM in the case, being careful not to crimp
or cut the switch wires between the case and the PCM. Install the complete assembly back underneath the dashboard. The label
on the PCM connector should be facing the fender. Reconnect the PCM harness connector. Save the case bolts, ground tab and
plastic cap in case you should ever need to remove the module.
Turn on the ignition key and check for proper operation of the "Wait to Start" or “Glow Plug” light. If no light appears, TURN OFF
the ignition key, remove the module and re-clean the edge connector. Once the light operation is verified, start the vehicle and
verify that it appears to be operating correctly.
NOTE: The “Check Engine” light may blink very quickly, appearing as little more than a slight flicker. This is an acceptable