Engine - Hesitation/Stumble/Delayed 4-2 Downshifts
Article No.97-7-2
03/31/97
^ HESITATION - ON ACCELERATION - VEHICLES WITH 3.0L 4-VALVE ENGINE
^ HESITATION/STUMBLE - DELAYED 4-2 DOWNSHIFT - VEHICLES WITH 3.0L 4-VALVE ENGINE AND AX4N TRANSAXLE
^ TRANSAXLE - AX4N - DELAYED 4-2 DOWNSHIFT AND HESITATION STUMBLE - VEHICLES WITH 3.0L 4-VALVE ENGINE
FORD:
1996-97 TAURUS
LINCOLN-MERCURY:
1996-97 SABLE
This TSB article is being republished in its entirety to include Powertrain Control Module (PCM) part numbers.
CALIBRATION:
6-14A-R06, 6-14A-R10, 6-14A-R11, 6-14S-R06, 6-14S-R10, 6-14S-R11 7-14A-R06, 7-14S-R06, 7-LDA-QAB
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 on acceleration or hesitation/stumble and delayed 4-2 downshifts may occur on some vehicles. This may be caused by the PCM calibration regarding the torque modulation.
ACTION:
Reprogram the PCM. The new calibration has been revised to eliminate the hesitation and delayed 4-2 downshift associated to torque modulation. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1. Verify the concern.
2. Perform normal diagnostics as outlined in the appropriate year Taurus/Sable Service Manual.
3. Reprogram the PCM using the Service Bay Diagnostic System (SBDS) or New Generation Star (NGS) Tester. Refer to the PCM Application Chart for correct calibration usage.
NOTE:
REGIONAL APPROVAL MUST BE OBTAINED WHEN IT IS NECESSARY TO REPLACE THE PCM.
Obtain an Authorized Modification Decal (FPS 8262 - obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications 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.
PART NUMBER PART NAME
F6PZ-12A650-CGA Powertrain Control Module (PCM)
F6PZ-12A650-CFS Powertrain Control Module (PCM)
F7DZ-12A650-GD Powertrain Control Module (PCM)
F7DZ-12A650-HD Powertrain Control Module (PCM)
F7DZ-12A65O-VC Powertrain Control Module (PCM)
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 97-6-5
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
970702A Reprogram Powertrain 0.2 Hr.
Control Module (PCM)
970702B Replace Powertrain Control 0.5 Hr.
Module (PCM)
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 08
OASIS CODES: 502000, 611000, 611500, 614500