Fulltext TSBs

Technical Service Bulletins

TSB
00-10-4
  • IDLE – ROUGH IDLE SPEED – BI-FUEL VEHICLES ONLY
  • STALL – DURING IDLE SPEEDS – BI-FUEL VEHICLES ONLY
Publication Date: MAY 4, 2000

FORD:
1998-1999 E-250, E-350, F-150, F-250 LD

ISSUE:

On some vehicles vaporizers with GFI model numbers Z5-100 or Z7-100, may experience internal component deterioration due to fuel contamination.

ACTION:

The following procedures are provided to expedite diagnostics and to determine if component debris (caused by fuel contamination) has impeded the operation of the Vaporizer, Compuvalve, Fuel Rails, and/or Injector Sleeves. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

Perform all preliminary diagnostics as indicated in the Workshop Manual/Workshop information CD to ensure that the base vehicle is operational. Even a weak ignition system may cause a driveability concern in ALT fuel while not affecting gasoline. Use the NGS to verify that the PCM calibration matches the current bi-fuel calibration code in the following Calibration Chart.

Calibration Chart
VehicleApplicationCalibration
1998 F150 E40D49 STATEMLAEOC5.HEX (8-46C-R10)
1998 F250 E40D49 STATEMLAEOG5.HEX (8-46G-R10)
1998 F150 E40DCALIFORNIAMLAEOS5.HEX (8-46S-R10)
1998 F250 E40DCALIFORNIAMLAEOV5.HEX (8-46V-R10)
1998 E250 E40D49 STATEMLAEOL5.HEX (8-46L-R00)
1998 E350 E40D49 STATEMLAEOL5.HEX (8-46L-R00)
1998 E250 E40DCALIFORNIAMLAEOM5.HEX (8-46M-R00)
1998 E350 E40DCALIFORNIAMLAEOR6.HEX (8-74R-R00)
1999 E250 E40D49 STATEMLAEOL5.HEX (8-46L-R00)
1999 E350 E40D49 STATEMLAEOL5.HEX (8-46L-R00)
1999 E250 E40DCALIFORNIAMLAEOM5.HEX (8-46M-R00)
1999 E350 E40DCALIFORNIAMLAEOM5.HEX (8-74R-R00)

Confirm and record the model number of the vaporizer for the vehicle. On the F-Series truck, a mirror can be used to read the model number and on the Econoline van, unbolt the vaporizer from the bracket to read the model number.

If the Vaporizer model number is not labeled Z5-100 or Z7-100 follow the procedures outlined in the Workshop Manual/Workshop information CD. If the Vaporizer model number is labeled Z5-100 or Z7-100, continue with the following service procedure (Figures 1-3).

PART NUMBERPART NAME
F85Z-9F954-CARM COMPUVALVE – 1998 F-150/250
F8UZ-9F954-CARMCOMPUVALVE – 1998-1999 E-250/350
XL3Z-9F954-BARMCOMPUVALVE – 1999 F-250
XL3Z-9F954-CARM COMPUVALVE – 1999 F-150
XL3Z-9C968-AAGF VAPORIZER – 1998-1999 F-150/250
F8UZ-9C968-BAGFVAPORIZER – 1998-1999 E-250/350

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Information Only

OASIS CODES:

603300, 607000, 607400, 608000, 608400, 609000, 609400




Figure 1 – Article 00-10-4




Figure 2 – Article 00-10-4




Figure 3 – Article 00-10-4