NHTSA Office of Defects Investigation
Engineering Analysis EA99-032: DUAL FUEL TANK CROSSFLOW/LEAKAGE
- Closed
NHTSA's Office of Defects Investigation opened Engineering Analysis EA99-032 on November 4, 1999, the day it closed Recall Query RQ98-008, whose summary cites it, and closed it on December 6, 2001. NHTSA's investigations file lists 8 Ford models for it and links campaigns 00V-424 and 01I-008 to it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- EA99-032 (also written EA99032)
- Investigation type
- Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
- Status
- Closed December 6, 2001
- Opened
- Closed
- Vehicle or equipment manufacturer
- Ford Motor Company
- Component
- Vehicle Speed Control — Linkages
- Campaigns linked by NHTSA
- 00V-424 (NHTSA record)
- 01I-008 (NHTSA record)
- Vehicles and equipment
- 8 Ford models, including the F-150 and F-250
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA99-032.
try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.
ON JULY 14, 1993 FORD FILED A DEFECT INFORMATION REPORT CONCERNING FUEL TANK CROSS FLOW LEAKAGE ON F-SERIES LIGHT TRUCKS AND CAB CHASSIS BUILT FROM JULY 22, 1989 THROUGH DECEMBER 17, 1992.
THE REMEDY WAS TO REPLACE THE FUEL PRESSURE REGULATOR AND INSTALL A CHECK VALVE BETWEEN EACH FUEL SUPPLY LINE AND FUEL TANK (2) TO REPAIR THE SUPPLY SIDE FUEL CROSS FLOW PROBLEM (RECALL 93V-125).
ODI OPENED RQ98-008 ON MAY 29, 1998 BECAUSE OF THE LARGE NUMBER OF ALLEGED REMEDY FAILURES AND REPORTS OF FUEL CROSS FLOW ON VEHICLES OUTSIDE OF THE RECALL POPULATION.BASED ONTHE INFORMATION RECEIVED FROM FORD ON AUGUST 11, SEPTEMBER 30, AND DECEMBER 15, 1998, AND THE INCREASING TREND OF REMEDY FAILURES AND OUT OF SCOPE CROSSFLOW REPORTS, ODI OPENED EA99-032 ON NOVEMBER 4, 1999.
THE ATTACHED ENGINEERING ANALYSIS CLOSING REPORT FULLY DESCRIBES THE RESULTS OF THIS INVESTIGATION AND REASON FOR CLOSING.THE SUBJECT VEHICLES CAN EXPERIENCE FUEL TRANSFER FROM ONE TANK TO THE OTHER DUE TO MALFUNCTIONS IN THE FUEL SYSTEM.WHEN FUEL IS PUMPED OR RETURNED TO THE NON-OPERATING TANK (CROSS FLOW), THE CAPACITY OF THE NON-OPERATING TANK CAN BE EXCEEDED, CAUSING FUEL TO OVERFLOW PAST THE FILLER CAP, CREATING A FIRE POTENTIAL.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA99-032. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
What an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Ford VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for EA99-032
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.