NHTSA ID Number: 10199989
Incident Date: 2007-08-17
Manufacturer's Name: Honda
(American Honda Motor Co.)
Vehicle/Equipment Make: HONDA
Vehicle/Equipment Model: VF750
Model Year: 1998
9999 If Unknown Or N/A
Vehicle Identification Number: JH2RC4333WM
Vehicle Mileage At Failure: 18980
Vehicle Speed: 70
Number Of Occurrences: 2
Was Vehicle Towed: No
Consumer Location: WESTLAND, MI
Summary of Complaint
MY 1998 HONDA MAGNA VF750 HAS SUFFERED A FUEL SYSTEM FAILURE DUE TO THE "AUTO FUEL VALVE". THE VEHICLE RUNS LEAN THROUGH MID-RANGE ENGINE SPEEDS AND LOSES POWER. EVENTUALLY, THE ENGINE COMPLETELY STALLS. THE SECOND FAILURE OCCURRED TODAY, AUG. 17, '07 AT APPROXIMATELY 8PM ON I-96 IN WIXOM, MI. I WAS ENTERING THE FREEWAY WITH HEAVY TRAFFIC. WHEN SHIFTING TO FIFTH GEAR AT 70 MPH, THE ENGINE LOST POWER. I RELEASED THE CLUTCH AND THE ENGINE STALLED. I MOVED TO THE SHOULDER, RESTARTED THE ENGINE, AND MANAGED TO MOVE THE VEHICLE ALONG THE SHOULDER FOR APPROXIMATELY 3/4 MILE ON ENGINE POWER BEFORE IT STALLED AGAIN. I THEN WALKED 2.5 MILES TO THE NEXT EXIT. WHILE IN THE PARKING LOT OF A RETAIL STORE, I MANAGED TO REMOVE THE "AUTO FUEL VALVE" WITH TOOLS PURCHASED FROM THE STORE. I CONNECTED THE FUEL TANK DIRECTLY TO THE CARBURETOR FUEL LINES, BUT I WAS UNABLE TO DRIVE THE VEHICLE AWAY. THE "AUTO FUEL VALVE" CONTROLS FUEL FLOW FROM THE TANK AND I BELIEVE IT ALSO ACTS AS A PUMP. THE "AUTO FUEL VALVE" IS AN ASSEMBLY THAT RETAILS FOR APPROXIMATELY $35. IT CONSISTS OF ALUMINUM CASTINGS, A SPRING AND A RUBBER DIAPHRAGM. CYLINDER FOUR CREATES VACUUM WHEN THE ENGINE CRANKS DURING STARTING AND PULLS THE DIAPHRAGM OPEN. THE VACUUM IS APPLIED TO THE DIAPHRAGM THROUGH A SMALL TUBE CONNECTED TO THE CARBURETOR FOR CYLINDER FOUR. WHEN THE DIAPHRAGM IS PULLED OPEN, GRAVITY CAUSES FUEL FROM THE FUEL TANK TO FLOW THROUGH THE ASSEMBLY AND ON TO THE CARBURETORS. DUE TO THE PULSATING OF THE DIAPHRAGM FROM THE MOVEMENT OF PISTON FOUR, THE DIAPHRAGM ALSO ACTS AS A FUEL PUMP. A SPRING NORMALLY PUSHES THE DIAPHRAGM CLOSED TO BLOCK FUEL FLOW TO THE ENGINE WHEN NO VACUUM IS APPLIED THE FAILURE OF THE ENGINE OCCURS WHEN THE RUBBER DIAPHRAGM DEVELOPS A TEAR ON THE OUTER EDGE. ENGINE VACUUM IS NO LONGER ABLE TO PULL THE DIAPHRAGM DUE TO THE TEAR AND FUEL STOPS FLOWING. THIS IS OBVIOUSLY A MAJOR SAFETY ISSUE DUE TO THE NATURE OF THE FAILURE. PHOTOS AND THE FAILURE PARTS ARE AVAILABLE. *JB
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Complaint 10199989 Documents
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CRASH: No
WAS VEHICLE INVOLVED IN A CRASH
FIRE: No
WAS VEHICLE INVOLVED IN A FIRE
INJURIES: 0
NUMBER OF PERSONS INJURED
DEATHS: 0
NUMBER OF FATALITIES
Was Medical Attention Required: No
Was Incident Reported To Police: No
Date Of Incident: 2007-08-17
(YYYY-MM-DD)
Date Added To File: 2007-08-18
(YYYY-MM-DD)
Date Complaint Received By NHTSA: 2007-08-18
(YYYY-MM-DD)
Date Purchased: 2002-01-24
(YYYY-MM-DD)
Was Original Owner: No
Product Type: Vehicle
V = Vehicle T = Tires E = Equipment C = Child Restraint
Specific Component's Description: FUEL SYSTEM, GASOLINE:DELIVERY
Anti-Lock Brakes: No
Cruise Control: No
Number Of Cylinders: 4
Drive Train Type: RWD
[AWD, 4WD, FWD, RWD]
Fuel System:
FI = Fuel Injection TB = Turbo
Fuel Type: Gas
BF = BiFuel CN = CNG/LPG DS = Diesel GS = Gas HR = HybridElectric
Vehicle Transmission Type [Auto, Man]: MAN
(DOT) Department Of Transportation Tire Identifier:
Tire Size:
Location Of Tire:
FSW = Driver Side Front DSR = Driver Side Rear FTR = Passenger Side Front PSR = Passenger Side Rear SPR = Spare
Type Of Tire Failure:
BST = Blister BLW = Blowout TTL = Crack OFR = Out Of Round TSW = Puncture TTR = Road Hazard TSP = Tread Separation
Was Defective Tire Repaired:
Was Part Original Equipment:
Date Of Manufacture:
(YYYYMMDD)
Type Of Child Seat:
B = Booster C = Convertible I = Infant IN = Integrated TD = Toddler
Installation System:
A = Vehicle Safety Belt B = Latch System
Dealer's Name: PILGRIM MOTORSPORTS
Dealer's Telephone Number:
Dealer's City: PLYMOUTH
Dealer's State: MI
Dealer's Zipcode: 48170
SOURCE OF COMPLAINT CODE:
CAG = Consumer Action Group CON = Forwarded From A Congressional Office DP = Defect Petition,result Of A Defect Petition EVOQ = Hotline VOQ EWR = EARLY WARNING REPORTING INS = Insurance Company IVOQ = NHTSA Web Site LETR = Consumer Letter MAVQ = NHTSA Mobile APP MIVQ = NHTSA Mobile APP MVOQ = Optical Marked VOQ RC = Recall Complaint, Result Of A Recall Investigation RP = Recall Petition, Result Of A Recall Petition SVOQ = Portable Safety Complaint Form (PDF) VOQ = NHTSA Vehicle Owners Questionnaire
Incident State Code:
Vehicle Operator's Name:
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