F 250 4WD Super Duty V10-6.8L VIN S (2001)
Crankshaft Position Sensor: Technical Service Bulletins
Engine, Bi Fuel - No Start Condition
Article No.
01-15-5
08/06/01
DRIVEABILITY - BI-FUEL VEHICLES ONLY - NO
START - GASOLINE OR ALT FUEL MODE - VEHICLES
EQUIPPED WITH 5.4L OR 6.8L BI-FUEL ENGINE
ONLY
FORD:
1999-2001 F-150, SUPER DUTY F SERIES
ISSUE
Some Bi-Fuel vehicles may exhibit a no start condition in both the gasoline mode and the alt fuel mode (LPG & CNG). This may be caused by the
Crankshaft Position Sensor (CKP) circuit.
ACTION
Check CKP (Crankshaft Position) circuit. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1999 BI-Fuel Vehicles:
1.
With the alt fuel selector switch in the GAS position, disconnect the Clean Tach Output (CTO) module connector C4044 (labeled J44 and located
near the battery) and start the vehicle in the gasoline mode.
2.
If the vehicle starts in the gasoline mode, refer to the PC/ED Section 5, pinpoint test JH1. Reconnect all connectors when complete.
NOTE
IF THE VEHICLE DOES NOT START IN THE GASOLINE MODE, RECONNECT C4044 (LABELED J44) AND REFER TO THE BASE
VEHICLE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS MANUAL FOR NO START - NORMAL CRANK.
2000-2001 Bi-Fuel Vehicles:
1.
With the alt fuel selector switch in the GAS position, disconnect the compuvalve connector C4036 (labeled J36/P36) and start the vehicle in the
gasoline mode.
2.
If the vehicle starts in the gasoline mode, disconnect C4026 (labeled J26/P26) and refer to the PC/ED Section 5, pinpoint test ADS. Reconnect all
connectors when complete.
NOTE
IF THE VEHICLE DOES NOT START IN THE GASOLINE MODE, RECONNECT C4036 (LABELED J361P36) AND REFER TO THE BASE
VEHICLE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS MANUAL FOR NO START - NORMAL CRANK.
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 601300, 602300, 603300
