Taurus V6-232 3.8L (1989)
Idle Speed: All Technical Service Bulletins
Idle Speed Setting Procedure - Manual Revision
ENGINE EMISSIONS DIAGNOSIS SHOP MANUAL-1989-
SECTION 4-IDLE SPEED SETTING PROCEDURES REVISED
Article No. 89-12A-24
FORD:
1989 TAURUS
LIGHT TRUCK:
1989 RANGER
ISSUE:
The Idle Speed Setting Procedures on page 4-16, 4-19, 4-20, and 4-21 of the 1989 Engine Emissions Diagnosis Manual are incorrect.
ACTION:
Refer to the pages following this TSB article for the revised procedures. This information should be inserted in your 1989 Engine Emissions
Diagnosis Manual, pages 4-16, 4-19, 4-20, and 4-21.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS:
INFORMATION ONLY
OASIS CODES:
680000
Carburetors, Throttle Bodies and Injectors
1989
4-15
CFI, EFI & Carburetor System Troubleshooting
1989
4-16
Carburetors, Throttle Bodies and Injectors
Idle Speed Setting Procedure
[Note]
The curb idle and fast idle speeds are controlled by the EEC-IV processor and the idle speed control device and cannot be adjusted.
[Remember]
A change in idle speed occurred because of a problem elsewhere. You should only enter this procedure after you have eliminated the possible causes
listed below:
^
Contamination within the throttle bore
^
Contamination within the idle speed control device
^
Throttle sticking or binding
^
Engine not reaching operating temperature
^
Vacuum leaks (air intake manifold, vacuum hoses, vacuum reservoirs, power brake booster where applicable, etc.)
[Verify]