Engine - Hesitation/Stall/Stumble After Cold Start

Article No.
92-19-4

09/09/92

^ HESITATION - 3.0L - AFTER COLD START DURING FIRST TWO MILES OF DRIVING - VEHICLES BUILT THROUGH 2/5/92

^ STALL - 3.0L - AFTER COLD START DURING FIRST TWO MILES OF DRIVING - VEHICLES BUILT THROUGH 2/5/92

^ STUMBLE - 3.0L - AFTER COLD START DURING FIRST TWO MILES OF DRIVING - VEHICLES BUILT THROUGH 2/5/92

FORD:
1992 TAURUS

LINCOLN-MERCURY:
1992 SABLE

CALIBRATION:
2-10S-R00

WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.

ISSUE:
A hesitation, stumble or stall may occur during the first two miles (4 km) or four minutes of driving time after an initial cold start at ambient temperatures of 50~F (10~C) or below. These symptoms may be caused by the operating strategy of the powertrain EEC IV processor.

ACTION:
Perform the foliowing procedures to determine if a new EEC IV processor with a revised operating strategy is required.

1. Follow the diagnostic procedures in the 1992 Powertrain Control/Emissions Diagnosis Service for the subject symptoms and service as required.





2. If the concern still exists, install a new EEC IV processor (F3DZ-12A650-LA).





Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES:
NONE

WARRANTY STATUS:
Eligible Under Bumper To Bumper And Emissions Warranty Coverage

OPERATION DESCRIPTION TIME
921904A Perform Diagnosis, Replace 1.0 Hr.
Processor And Install
Modification Decal

DEALER CODING
BASIC PART NO. CONDITION CODE
DRIVE 08

OASIS CODES:
607000, 607400, 607500, 607600, 611000, 611500