There are 4 stored owner reports matching the fuel system leading-label group for the 2004 Mazda MPV in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)ACCELERATOR (GAS PEDAL) STOCK OPEN WHEN PEDAL PRESSED FOR ACCELERATION ONTO INTERSTATE HIGHWAY. VEHICLE ACCELERATED TO VERY HIGH SPEED. PRESSING BRAKE SLOWED VEHICLE TO 55 MPH. SHIFTED TO NEUTRAL, HEARD A LOW POP AND ACCELERATOR MECHANISM DISENGAGED.
MAZDA 2004 MPV WITH JUST UNDER 68,000 MILES HAS 3 FUEL INJECTORS(CEL) REPLACED BY LOCAL MECHANIC- 2 WEEKS LATER JERKY MISFIRES WITH CEL REQUIRED #5 COIL REPLACED BY DEALERSHIP, LESS THAN A MONTH LATER #4 COIL REPLACED BY LOCAL MECHANIC IN TOWN WE WERE VACATIONING IN-NO CEL, NOW SAME JERKY MISFIRES STARTING AGAIN A MONTH AFTER LAST REPLACEMENT. RECENT FORUM ENTRIES SEEM TO INDICATE A GROWING PROBLEM OF THIS TYPE FOR 2004 MPV. EXCEPT FOR TOWING CHARGES, EXPENSIVE REPAIRS, AND INCONVENIENCE- NO INJURIES. *TR
CAR IS RUNNING FINE, AND THEN ENGINE STOPS. AFTER SETTING FOR A MINUTE OR SO, ENGINE WILL START AGAIN AND RUN FINE FOR DAYS ...THEN THE ABOVE RECURS. REPLACED IDLE CONTROL VALVE...NO MORE TROUBLE. *TR
DT*: THE CONTACT STATED WHILE DEPRESSING THE ACCELERATOR PEDAL, THE VEHICLE WOULD NOT ACCELERATE. THE VEHICLE WAS TAKEN TO THE DEALERSHIP, WHERE IT WAS DETERMINED THE BLADDER SEPARATED IN THE FUEL TANK AND WAS GETTING INTO THE FUEL PUMP. THE GAS TANK NEEDED TO BE REPLACED.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.