PULSATION DAMPER FAILURE. LEAKED FUEL. CAUSED ENGINE FIRE. *JS
1991 Mazda RX-7
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all RX-7 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 7 of 22 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Seat Belts. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
4 reportsTL* THE CONTACT OWNS A 1991 MAZDA RX7. THE CONTACT STATED THAT WHILE DRIVING 20 MPH, ALL OF THE WARNING LAMPS ILLUMINATED ON THE INSTRUMENT PANEL AND THE ENGINE COMPARTMENT IGNITED INTO FLAMES. THE FIRE DEPARTMENT WAS NOTIFIED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE…
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TL* THE CONTACT OWNS A 1991 MAZDA RX7. THE CONTACT STATED THAT WHILE DRIVING 20 MPH, ALL OF THE WARNING LAMPS ILLUMINATED ON THE INSTRUMENT PANEL AND THE ENGINE COMPARTMENT IGNITED INTO FLAMES. THE FIRE DEPARTMENT WAS NOTIFIED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED NO ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 144,000. . UPDATED 03/26/12 *BF THE CONSUMER STATED PRIOR TO THE FIRE, THE ENGINE STARTED MISFIRING WHILE DRIVING UP A HILL AT 30 MPH. A SMELL OF FUEL WAS ALSO PRESENT. WITHIN ONE MILE OF THE MISFIRING, THE GAS PEDAL BECAME UNRESPONSIVE AND ALL THE WARNING LIGHTS ILLUMINATED AND THE ENGINE COMPARTMENT EXPLODED IN FLAMES. THERE WAS NO SMOKE, JUST BURNING FUEL. HE OPENED THE HOOD AND FLAMES SHOT UP 20 FEET IN THE AIR. UPDATED 05/07/12
MAZDA'S RX-7 MODEL FC3S FROM MODEL YEAR 1986-1992'S FUEL PULSATION DAMPER HAS AN ISSUE THAT IT WILL LEAK, SINCE THE DEVICE SITS ON TOP OF THE ENGINE SO IF THE TIMING IS RIGHT, AN ENGINE FIRE WILL START. IT IS A VERY WELL KNOWN ISSUE IN THE RX-7 COMMUNITY. IM SURPRISED NO ONE EVER FILED A COMPLAIN OVER THIS. 1986-1988'S FUEL PULS…
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MAZDA'S RX-7 MODEL FC3S FROM MODEL YEAR 1986-1992'S FUEL PULSATION DAMPER HAS AN ISSUE THAT IT WILL LEAK, SINCE THE DEVICE SITS ON TOP OF THE ENGINE SO IF THE TIMING IS RIGHT, AN ENGINE FIRE WILL START. IT IS A VERY WELL KNOWN ISSUE IN THE RX-7 COMMUNITY. IM SURPRISED NO ONE EVER FILED A COMPLAIN OVER THIS. 1986-1988'S FUEL PULSATION DAMPER IS VERY PRONE TO THIS DEFECT, THEY CHANGED THE DESIGN AND USE THEM ON LATER MODEL YEAR OF RX-7 FROM 1989-1992, BUT IT WILL STILL LEAK. *TR
DUE TO DEFECTIVE FUEL RAIL, CONNECTED TO FUEL INJECTION SYSTEM, LEAKS FUEL ONTO ENGINE COMPARTMENT, WHICH MAY HAVE CAUSE A FIRE. COMMON PROBLEM. DEALER NEEDED TO REPLACE FUEL RAIL. *AK THERE WAS EXCESSIVE FUEL SMELL AROUND THE VEHICLE WITH THE HOOD CLOSED. THE FUEL RAIL AND EXHAUST MANIFOLD ARE ON THE SAME SIDE. *YH
Official recalls
196V173000 · Seat Belts:front:webbing
Sep 16, 1996
THE RAIL OF THE AUTOMATIC SHOULDER BELT CAN WEAR SUFFICIENTLY SUCH THAT THE CABLE WHICH RETRACTS THE BUCKLE ASSEMBLY WILL BECOME JAMMED IN THE RAIL RENDERING THE SHOULDER BELT INOPERATIVE.
Consequence & remedy
Consequence: IN THE EVENT OF A VEHICLE COLLISION, THE OCCUPANT WOULD NOT BE ADEQUATELY RESTRAINED INCREASING THE RISK OF PERSONAL INJURY.
Remedy: DEALERS WILL REPLACE INOPERATIVE SHOULDER BELTS. MAZDA HAS EXTENDED THE WARRANTY COVERAGE ON THE DRIVER AND PASSENGER AUTOMATIC SHOULDER BELT RAIL AND MOTOR FOR THE LIFE OF THE VEHICLE.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE96027 · Mazda RX7 Automatic Seat Belt Failure
Opened Apr 16, 1996 · Closed Sep 30, 1996
Status: closed (inferred from source dates) · Seat Belts
MALFUNCTION OF THE AUTOMATIC SEAT BELT SYSTEM
Illustration