The 1994 Mazda Rx-7 has 3 NHTSA recall campaigns affecting an estimated 39,616 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 26 complaints with NHTSA, most often about the fuel system, gasoline. Last updated July 5, 2026.
OIL MIST CONTAINED IN THE ENGINE INTAKE AIR CAN COLLECT OVER TIME IN THE BRAKE VACUUM CHECK VALVE PREVENTING THE CHECK VALVE FROM OPENING AT THE SPECIFIED PRESSURE REDUCING POWER ASSIST TO THE BRAKES.
BRAKE PERFORMANCE CAN BE DIMINISHED INCREASING THE RISK OF A VEHICLE ACCIDENT.
DEALERS WILL REPLACE TWO VACUUM HOSES, INCLUDING THE CHECK VALVE, WITH MODIFIED HOSES.
RESIDUAL ENGINE HEAT CAN CAUSE PREMATURE DETERIORATION OF THE FUEL HOSE CAUSING THE HOSE TO LEAK. ALSO, REMOVING AND REINSTALLING THE DETERIORATED FUEL HOSES INCREASES THE LIKELIHOOD OF A LEAK.
THIS CONDITION CAN RESULT IN AN ENGINE COMPARTMENT FIRE.
DEALERS WILL INSTALL AN ADDITIONAL CONTROL UNIT FOR THE ELECTRIC COOLING FAN. THE FAN WILL THEN ACTIVATE AFTER THE ENGINE IS TURNED OFF WHEN THE COOLANT EXCEEDS A SPECIFIED TEMPERATURE. THE FUEL HOSES WILL ALSO BE REPLACED WITH REVISED HOSES.
THE RADIATOR CAP PRESSURE RELIEF VALVE RELEASE PRESSURE IS SET TOO HIGH. THIS CAN CAUSE THE COOLANT TO REACH TEMPERATURES THAT EXCEED THE THERMAL DESIGN LIMITS OF SOME COMPONENTS OF THE COOLANT SYSTEM. SHOULD THIS OCCUR, ENGINE COOLANT CAN LEAK COLLECT ON TOP OF THE ENGINE.
IF ENGINE COOLANT LEAKS ONTO THE HOT ENGINE EXHAUST MANIFOLD FROM THE TOP OF THE ENGINE, AN ENGINE COMPARTMENT FIRE CAN RESULT.
DEALERS WILL INSPECT THE VEHICLES AND IF ANY VEHICLE EXHIBITS COOLANT LEAKAGE OR IF THE COOLANT LEVEL HAS DROPPED TO THE POINT WHERE THE COOLANT LOSS WOULD BE SUFFICIENT TO TRIGGER THE COOLANT LEVEL WARNING SYSTEM, COMPONENTS POTENTIALLY SUBJECT TO DETERIORATION FROM OVERHEATING WOULD BE REPLACED. THESE PARTS INCLUDE…
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Mazda 1994 rx7 fd3s pulsation dampener failure. Caused loss of fuel and damage to wire harness. The fuel leaked onto and into the wire harness and caused the harness to become saturated, damp and brittle. I also had to pay to replace and install new pulsation dampener, wire harness, intake gasket…”
“Mazda 1994 rx7 fd3s pulsation dampener failure. Caused loss of fuel and damage to wire harness. The fuel leaked onto and into the wire harness and caused the harness to become saturated, damp and brittle. I also had to pay to replace and install new pulsation dampener, wire harness, intake gasket…”
“I have been informed that this is a major cause of engine fires. This should be replaced by the manufacturer. *jb ***dimsii ivoq entry posted after 12/12/02 cut-over to artemis****770782”
“I came extremely close to an engine fire. My engine bay was soaked with fuel. Now half the engine has to be taken out in order to fix this problem. I shouldnt have to fix this. The rx-7 has been around long enough to be able to come up with a suitable fix for this problem. I dont want this to…”
“Common failure of fuel plusation damper results in fuel leak under hood and engine fire. Should issue recall and design strong part.*ak”
“This seems to be a common failure for this car. Not only is it an expensive repair, but from what I understand this 'pulsation damper' failure has lead to many fires in this car. I believe the problem is happening again and I hope I don't have to pay another $500 to have it repaired again. I think…”
“Consumer states: the cooling fans do not come on after the vehicle turned off. The vehicle over heats unless the parking lights are turned on. It get to hot before the fans come on. *nm”
“Consumer states: the cooling fans do not come on after the vehicle turned off. The vehicle over heats unless the parking lights are turned on. It get to hot before the fans come on. *nm”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1994 Mazda Rx-7 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.