Engine - Hard Starting/Lack of Power

Article No.
93-2-7

01/18/93

^ FUEL SYSTEM - FILTER - REVISED SCHEDULED MAINTENANCE - GASOLINE ENGINES - SERVICE MANUAL REVISION

^ HARD STARTING - 4.9L, 5.0L, 5.8L AND 7.5L - RESTRICTED FUEL FILTER

^ LACK OF POWER/POOR PERFORMANCE - 4.9L, 5.0L, 5.8L AND 7.5L - RESTRICTED FUEL FILTER

LIGHT TRUCK:
1990-93 BRONCO, ECONOLINE, F SUPER DUTY, F-150-350 SERIES, F-47, F-53

This TSB article is being republished in its entirety to include 1993 model year vehicles.

ISSUE:
It is recommended that the frame mounted fuel filter be replaced at regular intervals of 15,000 miles (24,000 km)/15 month intervals. This is more frequent than the 22,500 miles (36,200 km)/22 month intervals stated in the Service Manuals. This shorter interval is necessary because of the changing nature of fuels available. A partially clogged or restricted fuel filter may cause such driveability symptoms as poor performance, lack of power and hard starting.

ACTION:
Replace the frame mounted fuel filters at 15,000 miles (24,000 km)/15 month intervals. Refer to the 1992 Econoline, F-150-350, Series, Bronco, F-Super Duty Service Manual, Section 10-01A, for service details.

OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 91-23-11
WARRANTY STATUS: INFORMATION ONLY

OASIS CODES:
404000, 490000, 602300, 611000, 611500, 614000, 614500, 614600