Aerostar 2WD V6-245 4.0L (1990)
Technical Service Bulletin # 91S41
Date: 920201
Recall - A/T A4LD Park Pawl Spring Replacement
TO:
All Ford Dealers February, 1992
SUBJECT:
Safety Recall 91S41 - Certain 1990 Ranger, 1990-1991 Aerostar and 1991 Explorer Trucks Equipped With A4LD Automatic Transmissions for
Inspection and, if Necessary, Modification of the Vehicle's Park Mechanism
REFERENCE:
Mailgram, same subject, dated October 23, 1991
REASONS FOR RECALL
WARNING: The automatic transmission park mechanism in the vehicles sometimes may not prevent the vehicle from rolling even if the transmission
shift lever is firmly placed in the "PARK" position.
WARNING:
IF A DRIVER PARKS THE VEHICLE WITHOUT SETTING THE PARKING BRAKE, IT COULD ROLL FREELY CREATING THE
POSSIBILITY OF A CRASH OR PERSONAL INJURY.
The automatic transmission park mechanism sometimes may not hold the vehicle in a parked position. Parking on a slope such as a driveway, inclined
parking lot or any non-level parking area without firmly setting the parking brake, may result in the vehicle freely rolling down the incline or slope
without warning.
To correct this condition, dealers are to replace the park pawl spring in the transmission and install a spring on the transmission shift cable on each of the
affected vehicles.
AFFECTED VEHICLES
Certain 1990 Ranger, 1990-1991 Aerostar and 1991 Explorer trucks equipped with A4LD automatic transmissions. Specific vehicle information is as
follows:
Vehicle
Affected
Assembly
Production Dates
Vehicles
Plant
From
Through
*
1990
Louisville
8/14/89
8/24/90
Ranger
Twin Cities
8/14/89
8/24/90
*
1990-1991
Aerostar
St. Louis
8/21/89
8/09/91
1991
Explorer
Louisville
2/05/90
7/26/91
*
Some 1989 model year transmissions were installed in early built 1990 Rangers and 1990 Aerostars. These vehicles DO NOT require the
modification. The park pawl spring in the kit will not fit the 1989 model year park pawl and is not needed. Please check the transmission
identification tag to determine the transmission model year.
ATTACHMENTS
Attachment I
- Administrative Information
Attachment II
- Labor Allowances
- Parts Ordering Information
Attachment III
- Technical Information
Administrative Info. Attachment I
ATTACHMENT I