F 150 4WD Pickup V8-302 5.0L (1986)
Fuel Injector: All Technical Service Bulletins
Engine - Hesitation/Hard Starting
Article No. 86-13-22
HESITATION - 1.6L, 2.3L, 2.9L, 3.0L AND 5.0L MULTI PORT INJECTION - DIRTY INJECTORS
STARTING - REPEATED ATTEMPTS
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1.6L, 2.3L, 2.9L, 3.0L AND 5.0L MULTI PORT - DIRTY INJECTORS
INJECTOR CLEANER/TESTER
FORD 1986 ESCORT, EXP, MUSTANG, THUNDERBIRD
LINCOLN-MERCURY 1986 LYNX, COUGAR
MERKUR 1985-86 XR4Ti
LIGHT TRUCK 1986 RANGER, E SERIES, F SERIES, BRONCO
Lean stumble, hesitation on driveaway, and multiple cold starts can be caused by deposits on the metering surfaces of the injector pintle, reducing fuel
flow. Vehicles that are used to make numerous short trips, particularly during hot weather, are most susceptible to drive concerns caused by injector tip
deposits. A major causal factor may be continuous use of gasolines that do not contain sufficient detergent additives.
If a drive concern is determined to be caused by lean injectors due to deposit formation, the customer should be informed that poor fuel quality
contributes to the formation of these deposits. The use of high quality gasolines which contain detergent additives to reduce or eliminate the formation of
such deposits should be recommended. Elimination of these deposits may require two or more tanks full of a fuel with added detergents. Injector tip
deposits will not form if good quality gasoline with proper additives is used.
Gasoline brands that are advertised as able to "keep injectors clean" or "clean up injectors" contain these necessary additives and are recommended by
Ford Motor Company.
A new tool (Rotunda 113-00001) is now available to test and clean injectors. This cleaner/tester will identify rich, plugged or otherwise defective
injectors (to allow replacement of faulty injector when required) or will indicate that all injectors are functioning correctly thus eliminating injectors as
the cause of a concern. This tester/cleaner will also reduce the time required to diagnose lean injector conditions. The unit can then be used to clean the
injector and retest to assure that the problem has been correctly diagnosed and fixed.
Copies of an information leaflet have been sent to all dealers by separate mailing. A copy of this leaflet should be placed in the vehicle or given to each
customer who has a drive concern caused by a plugged injector.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Use of Rotunda injector cleaner/ tester is reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: 12650D20
TIME:
Refer to 1986 Service Labor Time Standards Manual, Section 10000. DLR. CODING: Basic Part No. 9F593 - Code: 49
