TSB 98-8-4 High RPM Misfire

new 4/10/03

Printable View (9 KB)
Article No. 98-8-4	MALFUNCTION INDICATOR LAMP (MIL) - MIL ILLUMINATED - MISFIRES AT HIGH ENGINE RPMS DURING ENGINE WARM UP - VEHICLES EQUIPPED WITH 3.0L 4-VALVE ENGINE AND AX4N TRANSAXLE
Publication Date: APRIL 27, 1998

FORD:	1997 TAURUS
LINCOLN-MERCURY:	1997 SABLE

CALIBRATION:

7-14A-R06, 7-14A-R10, 7-14S-R06, 7-14S-R10

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:

The Malfunction Indicator Lamp (MIL) may illuminate for misfires at high engine rpms during engine warm up. The vehicle may also exhibit brief engine miss and/or roughness. These conditions usually occur at highway speeds after a 4-2 downshift and acceleration to 6000 rpms.

ACTION:

Perform normal diagnostics and reprogram the Powertrain Control Module (PCM). The revised calibration should reduce the possibility of these concerns. Refer to the following PCM Cross Reference Chart for correct PCM usage.

PCM CROSS REFERENCE
Old Calibration	Old Part Number (-12A650-)	New Calibration	New Part Number (-12A650-)
7-14A-R06, 10	F7DF-GC, GD, F7PF-RA	7-14A-R10	F7PF-RB
7-14S-R06, 10	F7DF-HC, HD, F7PF-SA	7-14S-R10	F7PF-SB

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 - orderable through DOES II, 25/pkg) 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.

AUTHORIZED MODIFICATIONS

THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:

Reprogrammed Powertrain Control Module (PCM) per TSB 98-8-4

THESE MODIFICATIONS HAVE BEEN APPROVED, AS APPROPRIATE, BY EPA AND CARB.

DEALER NUMBER: ------------------------------------------ DATE:

CHANGE AUTHORITY:

FPS 8262 9/78 FORD MOTOR COMPANY PRINTED IN U.S.A.

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage

OPERATION	DESCRIPTION	TIME
980804A	Reprogram Powertrain Control Module (PCM)	0.6 Hr.

DEALER CODING

BASIC PART NO.	CONDITION CODE
RECALEM	42

OASIS CODES:

206000, 608000, 608500, 609000, 609500, 614500, 698298

Contact Information