Octane Shorting Bar - Manual Revision: Overview

89Ford16

ENGINE EMISSIONS DIAGNOSIS SHOP MANUAL 1989-SECTION 14-OCTANE SHORTING BAR DIAGNOSTIC PROCEDURES AND QUICK TESTPINPOINT TEST INFORMATION TO DIAGNOSE 7.3L DIESEL RPM SENSOR

ENGINE EMISSIONS DIAGNOSIS SHOP MANUAL- 1989-SECTION 17-OCTANE SHORTING BAR DIAGNOSTIC PROCEDURES AND QUICK TESTPINPOINT TEST INFORMATION TO DIAGNOSE 7.3L DIESEL RPM SENSOR

Article No 89-12A-17

FORD: 1989 TAURUS, THUNDERBIRD

LINCOLN-MERCURY: 1989 COUGAR

LIGHT TRUCK: 1989 ECONOLINE, F-100-350 SERIES, RANGER

ISSUE: The octane adjust shorting bar diagnostic procedures for the 1989 Ranger 2.3L EFI, 1989 Taurus "SHO" 3.0L SEFI and the 1989 Thunderbird "SC"/Cougar XR7 3.8L SEFI Supercharged engines and the Quick Test - Pinpoint Test procedures to diagnose the 7.3L diesel engine RPM sensor are incorrect as published in the 1989 Engine Emissions Diagnosis Manual, Volume H, pages 14-12, 14-23, 14-25, 17-93, 17-289.

ACTION: Refer to the pages following this TSB article for information on the revised procedures and charts. This information should be inserted in your 1989 Engine Emissions Diagnosis Manual, Volume H, pages 14-12, 14-23, 14-25, 17-93, and 17-289.

OTHER APPLICABLE ARTICLES: None
SUPERSEDES: 89-1-10, 89-1-16, Dated 1/11/89
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 680000