PCM - Power Shuffle/Surge Between 45 and 60 MPH

Article No.
98-13-7

07/06/98

^ POWER SHUFFLE AND/OR SURGE - BETWEEN 72
AND 96 KM/H (45 AND 60 MPH) - VEHICLES WITH
3.0L 2-VALVE ENGINE

^ SURGE - VEHICLES WITH 3.0L 2-VALVE ENGINE

FORD:
1996-97 TAURUS

LINCOLN-MERCURY:
1996-97 SABLE

CALIBRATION





Refer to the Recalibration Cross Reference Chart in this TSB article for affected calibrations.

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

ISSUE

The vehicle may surge or exhibit a powertrain shuffle between the speeds of 72-96 km/h (45-60 mph). This may be caused by vehicle system resonance.

ACTION

Reprogram the Powertrain Control Module (PCM) using the latest level update CD-ROM calibration disc. Refer to the Service Procedure and Recalibration Cross Reference Chart for correct PCM calibration.

SERVICE PROCEDURE

NOTE
ONLY APPLY THIS CHANGE FOR THE SURGE/SHUFFLE SYMPTOM. CUSTOMERS MAY EXPERIENCE APPROXIMATELY A 1 MILE PER GALLON FUEL ECONOMY LOSS AND AN INCREASE IN ENGINE NOISE/VIBRATION BECAUSE OF INCREASED RPM.

1. Reprogram the PCM using the latest level CD-ROM.

NOTE
THERE WAS A CATALYST CHANGE IN THE MIDDLE OF THE 1997 MODEL YEAR ON 49-STATE VEHICLES ONLY. THIS CHANGE OF CATALYSTS AFFECTS THE CALIBRATIONS. THE TWO DIFFERENT CATALYSTS ARE ENGLEHART AND JMI. IT IS CRITICAL THAT YOU GET THE CALIBRATION NUMBER AND THE PCM TEAR TAG NUMBER BEFORE UPDATING THE PCM CALIBRATION.

2. FOR 1997 MODEL YEAR ONLY, refer to the calibration tag as well as the tear tag to determine which calibration to select when reprogramming the PCM. The tear tag is located as shown.

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a. Atlanta built (VIN Code A, Figure 1): front side of the RH front shock tower approximately 51 mm (2") down from the top ledge.

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b. Chicago built (VIN Code G, Figure 2): right side "A" post about 25 mm (1") above where the right front door wiring loom enters the "A" post.

c. Refer to the following Recalibration Cross Reference Chart with the calibration number and tear tag number to determine the correct PCM calibration.

NOTE
PCM REPLACEMENT IS NOT AUTHORIZED BY THIS TSB. REFER TO THE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS (PC/ED) SERVICE MANUAL FOR APPROPRIATE DIAGNOSTIC PROCEDURES IF PCM HARDWARE CONCERNS EXIST.





Obtain an Authorized Modifications 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.

OTHER APPLICABLE ARTICLES: 97-12-4, 97-7-1

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

981307A Reprogram Powertrain 0.6 Hr.
Control Module (PCM)

DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 42

OASIS CODES: 610500, 610600, 612000, 612600