1991 Mazda RX-7 Fuel system Problems
- Complaints
- 5about this part
- Share
- 23%of 22 total for the year
- Median mileage
- 150,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 1991 Mazda RX-7, 23% of the 22 complaints for this model year. Where a mileage was given, the median is 150,000 miles. 2 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #10386960, filed 2011-03, 211,000 miles“I am heavily concerned with the major safety issues of my beloved Mazda and need your help. My seat belt retractors are broken (emergency), the horns do not work (emergency), my rear windshield wiper and fluids do not work (visibility), my brake light is on(emergency), and my pulsation damper is leaking fuel (fire hazard). I have read many stories about rx7's that would catch on fire due to the fuel pulsation dampers leaking fuel onto the engine, eventually igniting their whole car to ashes.”
NHTSA complaint #10654098, filed 2014-11“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 the consumer stated prior to the fire, the engine started misfiring while driving up a hill at 30 MPH. …”
NHTSA complaint #10451712, filed 2012-03, 144,000 milesFuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 1994 | 4 | 22% |
| 1993 | 20 | 24% |
| 1991 | 5 | 23% |
| 1990 | 2 | 7% |
| 1989 | 1 | 3% |
| 1988 | 13 | 54% |
| 1987 | 32 | 63% |
| 1986 | 8 | 73% |
| 1984 | 2 | 40% |
Other parts of the 1991 Mazda RX-7
13 complaintsEngine cooling
2 complaintsElectrical system
1 complaintsEngine
1 complaintsExterior lighting
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 1991 Mazda RX-7
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology