IllustrationPULSATION DAMPER FAILURE LEAKING FUEL ALL OVER THE HOT EXHAUST THAT THE HEAT CAUGHT MY ENGINE ON FIRE! OVERHEATED AND DAMAGED INJECTOR CONNECTERS DUE TO FIRE BURNING THEM. INJECTORS THEM SELF : BURNT. TOTAL DAMAGE : NEAR $1058. *TR
1986 Mazda RX7
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 RX7 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: 5 of 11 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.
- Fuel System, Gasoline. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports5 fire reports1 injury reports
What owners actually said
11 reportsFUEL INJECTION PULSATION DAMPENER BEGAN LEAKING. DUE TO IT BEING LOCATED OVER THE LOWER INTAKE MANIFOLD WHICH IS RIGHT OVER THE EXHAUST MANIFOLD WHEN IT LEAKS FUEL RUNS DOWN THE LOWER INTAKE MANIFOLD AND ONTO THE EXHAUST MANIFOLD. WHEN THE CAR IS RUNNING THE EXHAUST MANIFOLD IS EXTREMELY HOT AND THIS PROBLEM LEADS TO MANY FIRES …
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FUEL INJECTION PULSATION DAMPENER BEGAN LEAKING. DUE TO IT BEING LOCATED OVER THE LOWER INTAKE MANIFOLD WHICH IS RIGHT OVER THE EXHAUST MANIFOLD WHEN IT LEAKS FUEL RUNS DOWN THE LOWER INTAKE MANIFOLD AND ONTO THE EXHAUST MANIFOLD. WHEN THE CAR IS RUNNING THE EXHAUST MANIFOLD IS EXTREMELY HOT AND THIS PROBLEM LEADS TO MANY FIRES ON THE MAZDA RX7 WHICH CAN AND DO CAUSE DAMAGE THAT RUNS INTO THE THOUSANDS OF DOLLARS TO REPAIR. I SMELLED FUEL WHEN GETTING OUT OF MY CAR AND WAS ABLE TO REPLACE THE FUEL RAIL BEFORE ANY ADDITIONAL DAMAGE OCCURRED. BECAUSE THIS PROBLEM IS COMMON WITH THESE CARS MAZDA SHOULD DO SOMETHING SUCH AS REPLACE THE EXISTING DAMPENER WITH ONE THAT WILL NOT LEAK OR AT LEAST REDESIGN THE DAMPENER SO THAT IT DRAINS ANY LEAKING FUEL THROUGH A TUBE OF SOME SORT TO THE GROUND INSTEAD OF ALLOWING IT TO LEAK ON A HOT EXHAUST MANIFOLD. MANY AN RX7 HAS DIED A FIERY DEATH DUE TO THIS KNOWN PROBLEM. *JB
RECENTLY PURCHASED THE CAR WITH A REBUILT MOTOR, BUT SEVERAL OLD PARTS WERE NOT REPLACED. OCCASIONALLY GAS FUMES ENTER THE PASSENGER COMPARTMENT. LOOKING AT THE PLACEMENT OF THE FUEL PULSATION DAMPNER, ONCE IT LEAKS IT WILL DRIP UNBURNED FUEL DIRECTLY ONTO THE MOTOR, RESULTING IN AN ENGINE FIRE. I WILL ORDER A NEW FUEL PULSAT…
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RECENTLY PURCHASED THE CAR WITH A REBUILT MOTOR, BUT SEVERAL OLD PARTS WERE NOT REPLACED. OCCASIONALLY GAS FUMES ENTER THE PASSENGER COMPARTMENT. LOOKING AT THE PLACEMENT OF THE FUEL PULSATION DAMPNER, ONCE IT LEAKS IT WILL DRIP UNBURNED FUEL DIRECTLY ONTO THE MOTOR, RESULTING IN AN ENGINE FIRE. I WILL ORDER A NEW FUEL PULSATION DAMPNER AND WILL BE READY TO REPLACE THAT ONE ONCE IT FAILS. *JB
THE CAR IS A DAILY DRIVER AND HAS NEVER BEEN DRIVEN BEYOND THE AVG DAILY ABUSE. ONE DAY I RETURN HOME AND IN THE DRIVEWAY THE CAR STALS AND I START IT AGAIN AND IT STALED AGAIN, UPON OPENING THE HOOD I"M GREETED WITH A BBQ SIZE FIRE ON THE INTAKE MANIFOLD. I PUT IT OUT WITH WATER AND LET IT COOL, BEING A MECHANIC I REPLACED THE…
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THE CAR IS A DAILY DRIVER AND HAS NEVER BEEN DRIVEN BEYOND THE AVG DAILY ABUSE. ONE DAY I RETURN HOME AND IN THE DRIVEWAY THE CAR STALS AND I START IT AGAIN AND IT STALED AGAIN, UPON OPENING THE HOOD I"M GREETED WITH A BBQ SIZE FIRE ON THE INTAKE MANIFOLD. I PUT IT OUT WITH WATER AND LET IT COOL, BEING A MECHANIC I REPLACED THE PULSATION DAMPNER WITH A BANJO BOLT TO FIX THE PROBLEM.*AK
FAULTY OOULSATION DAMPNER.. CAUSED ENGINE FIRE.. APROXIMATE REPAIRE OVER 1000 AND THAT WITH USING USED WIRING HARNESS.*AK
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK
BOTH DOOR HANDLES HAVE BROKEN AND BEEN REPLACED SEVERAL TIMES REGARDLESS OF WEATHER. PLEASE DESCRIBE DETAILS. TT
WHILE DRIVING ENGINE CAUGHT ON FIRE DUE TO A DEFECTIVE FUEL LINE.(PHONE EXT 516). TT
BEARINGS IN JACK CAME OUT WHILE JACKING UP CAR, CAUSING A LOUD SNAPPING NOISE/CAR TO FALL DOWN. *SD
THE VEHICLE CAUGHT FIRE DUE TO A FAULTY PULSATING DAMPER, THAT SPRAYED GASOLINE ON THE ENGINE. TT
Official recalls
187V160000 · Service Brakes, Air:disc:caliper
Oct 14, 1987
IN AREAS OF HEAVY USAGE, ROAD SALT MAY ACCUMULATE AT SURFACES OF COMPONENTS OF FRONT BRAKE CALIPERS.
Consequence & remedy
Consequence: THIS WOULD EVENTUALLY CAUSE DISC PAD LINER CORROSIONTHAT WOULD PREVENT FREE MOVEMENT OF DISC PADS RESULTING IN INEFFECTIVE BRAKINGOF THE FRONT BRAKES.
Remedy: REPAIR FRONT BRAKE CALIPERS TO PREVENT ROAD SALT ACCUMULATION.
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
0No exact-year investigations in this snapshot.