High Altitude Adjustments
Article No: 82-11A-2June 4, 1982
Subject:
3.8L Engine - Modification Of Sea Level Calibrations For Altitude Applications.
Ford
1982 T-Bird, Granada With 3.8L Engine, AOD Or C-5 Transmission,
Lincoln-Mercury
1982 Continental, XR7, Cougar With 3.8L Engine, AOD Or C-5 Transmission
Sea level calibrated vehicles which exhibit customer driveability concerns when operated in high altitude areas above 4,000 feet can be serviced in the following manner:
Continental, T-Bird, XR7 with AOD Transmission
1. Move the choke linkage from the standard to the altitude position.
Figure 1:
2. Cut the wires between the vacuum switch assembly and the ignition module (leave the connection at the ignition module intact). Solder the wires together to form a jumper at the ignition module. Tape the soldered joint, (Figure 1).
3. Advance the initial timing 4 ° from the nominal setting specified on the engine decal.
4. Remove the PCV valve EV-118 (E1DE-6A666-AA) and replace it with valve EV-76, Part No. D9DZ-6A666-A.
5. Reset the idle and hi-cam speeds to the decal specifications.
Obtain a Vehicle Emission Control Information Update Label (available at all Ford or Lincoln-Mercury dealers) and fill in the appropriate information.
NOTE:
The customer should retain the removed PCV valve and reverse the above procedures if the vehicle is returned to sea level operation, except for the aneroid vacuum diaphragm. The new diaphragm is self-compensating for both so. level and high altitude.
Granada, Cougar, T-Bird, XR7 with C-5 Transmission
1. Move the choke linkage from the standard to the altitude position.
2. Advance the initial timing 4° from the nominal setting specified on the engine decal.
3. Remove the PCV valve EV-118 (E1DE-6A666-AA) and replace it with valve EV-76, Part No. D9DZ-6A666-A.
4. Raise the vehicle.
5. Remove the transmission vacuum diaphragm attaching bolt, clip and vacuum hose.
6. Remove and discard the production diaphragm D6AP-7A377-AA and replace it with an altitude compensating diaphragm, Part No. D7DZ-7A377- A.
NOTE:
Retain the TV rod since it is matched to the case.
7. Install a new diaphragm attaching clip D8BZ-7FO06-A, the original attaching bolt and torque to specification. Remove the pre-formed elbow from the vacuum hose and attach the hose to fit (may require a longer length of hose).
8. Lower the vehicle.
9. Reset the idle and hi-cam speeds to the decal specifications.
10. Obtain a Vehicle Emission Control Information Update Label (available at all Ford or Lincoln-Mercury dealers) and fill in the appropriate information.
NOTE:
The customer should retain the removed PCV valve and reverse the above procedures if the vehicle is returned to sea level operation, except for the aneroid vacuum diaphragm. The new diaphragm is self-compensating for both sea level and high altitude.
Parts Block
Warranty Status: Reimbursable within the provisions of the Warranty and Policy Manual.
Operation: 9448-B-82
Time: .7 Hr.
DLR. Coding:
Basic Part No. Code:
Drive LO5