Ford F-150 2001 Workshop Manual page 14

2001 F-150 Workshop Manual
C3 CHECK THE FUEL TANK
C4 INSPECT THE FUEL PUMP ASSEMBLY
C5 CHECK CIRCUIT 29 (YE/WH) FOR SHORT TO POWER
Instrument Cluster C237
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Set Instrument Gauge System Tester to 15 ohms.
NOTE: The fuel gauge should read below E (empty mark) when carrying out this test step.
Wait one minute and read the fuel gauge.
Set Instrument Gauge System Tester to 160 ohms.
NOTE: The fuel gauge should read F (full) or above when carrying out this test step.
Wait one minute and read the fuel gauge.
Does the fuel gauge operate correctly?
Yes
GO to C3.
No
GO to C5.
Check the fuel tank for any damage or deformation.
Is the fuel tank OK?
Yes
GO to C4.
No
INSTALL a new fuel tank. REFER to Section
Check the fuel pump assembly in-tank mounting, float, float rod, wiring and connections for damage or
obstruction.
Are the fuel pump assembly and wiring OK?
Yes
INSTALL a new fuel sender. TEST the system for normal operation.
No
REPAIR or INSTALL a new fuel pump assembly as necessary. TEST the system for normal operation.
Measure the voltage between the instrument cluster C237 pin 3, circuit 29 (YE/WH), harness side and ground.
310-01A. TEST the system for normal operation.
Page 14 of 45
5/27/2011