E 150 Van V8-351 5.8L VIN H 4-bbl HP (1985)
Positive Crankcase Ventilation Valve: Technical Service Bulletins
High Altitude Operation Modification
Article No. 85-21-16
ALTITUDE (5.8L - W) - MODIFICATION OF SEA LEVEL CALIBRATION FOR ALTITUDE APPLICATION - VEHICLES WITH 4V
CARBURETORS ONLY - OVER 8500 LBS. GVWR
LIGHT TRUCK 1985 E & F SERIES
CALIBRATION: 5-76J-R05
WARNING:
This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and
could create liability under applicable federal or local laws.
Customers who may have relocated and/or continually operate the subject vehicles in high altitudes (above 4,000 ft. alt.) may have the following
procedure performed to improve performance:
^
Remove and retain the original (sea level) PCV valve (part number D8TE-6B890-BA) and replace it with PCV valve (part number
D7AZ-6A666-A).
^
Obtain a Vehicle Control Information Update Label (available at all Ford or Lincoln-Mercury dealers) and fill in the appropriate information as
indicated below.
^
If the vehicle is returned to continuous sea level (below 4,000 ft. alt.) operation, the above procedure should be reversed and the Vehicle Emission
Control Information Update Label should be removed from the vehicle.
Vehicle Emission Control Information Update Label
NOTE:
The Vehicle Emission Control Information Update Label is a new label to be used for altitude modifications. Do not use the Authorized
Modifications Decal which is used to indicate other types of modifications.
PART NUMBER
PART NAME
CLASS
D7AZ-6A666-A
PCV Valve
A
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP6666A85
TIME:
0.3 Hr. DLR. CODING: Basic Part No. DRIVE - Code: P6
PROGRAM CODE:
L05 (The program code is to be entered in the program code box in the Warranty Claim Form 1863)
