Fulltext TSBs

Technical Service Bulletins

TSB
00-12-3
  • SPARK KNOCK – LIGHT-TO-MODERATE ACCELERATION – 5.4L VEHICLES ONLY
Publication Date: JUNE 5, 2000

FORD:
1998 EXPEDITION, F-150, F-250 LD
LINCOLN:
1998 NAVIGATOR

ISSUE:

Some vehicles may experience spark knock during light-to-moderate accelerations. This may be caused by combustion chamber deposit buildups with time or distance increasing the fuel octane requirements, resulting in detonation.

ACTION:

Proceed with normal diagnostics per the Powertrain Control/Emissions Diagnosis (PC/ED) Service Manual. If spark knock on acceleration cannot be eliminated through normal diagnostics, reprogram the Powertrain Control Module (PCM). Refer to the following Calibration Information Chart for details.


CALIBRATION INFORMATION
ApplicationTear TagSBDS/WDS Qualifier
F-150 (49S/ALT/CAN)IRK08-46D CALIBRATION
F-150, F-250 LD (49S/CAN/ALT)CQJ08-46E CALIBRATION
Expedition, Navigator (49S/ALT/CAN)HNL08-46F CALIBRATION
F-150 (CALIFORNIA)UYT08-46R CALIBRATION
F-150, F-250 LD (CALIFORNIA)PJT08-46T CALIBRATION
Expedition, Navigator (CALIFORNIA)PZE08-46U CALIBRATION

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
001203AReprogram Powertrain Control Module (PCM)0.4 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
12A65042

OASIS CODES:

497000, 615500, 615600