Fuel Pump - Driveability Lack of Fuel Pressure

Article No.
00-20-1

10/02/00

HESITATION ON ACCELERATION OR TURNING -
LACK OF FUEL PRESSURE -
EXPLORER/MOUNTAINEER VEHICLES BUILT
THROUGH 8/15/2000 AND EXPEDITION/NAVIGATOR
VEHICLES BUILT THROUGH 6/30/2000

FORD:
1997-2000 EXPEDITION
1997-2001 EXPLORER

LINCOLN:
1998-2000 NAVIGATOR

MERCURY: 1997-2001 MOUNTAINEER

ISSUE

A hesitation on acceleration or while turning may be felt on some vehicles. This may be caused by fuel pump cavitation due to fuel sloshing away from the filter sock in the fuel tank reservoir.

ACTION

To service, check fuel pressure. Check all fuel pump related electrical circuits. If a fuel pressure concern is verified, refer to the following Service Procedure for details.

SERVICE PROCEDURE

1. Attempt to verify if fuel pressure drops during the event.

2. If a fuel pressure drop is verified, check all fuel pump related electrical wiring, connections and related systems.





3. If all checks OK, replace the fuel pump/sender assembly with a revised fuel pump/sender assembly. Refer to the parts listing for application.

4. Refer to the appropriate model year Workshop Manual, Section 310-01, for removal and installation instructions.

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: INFORMATION ONLY

OASIS CODES: 404000, 609000, 609500, 610000, 610500, 611000, 611500, 614000, 614500