1993 Mazda RX-7 Engine cooling Problems
- Complaints
- 36about this part
- Share
- 44%of 82 total for the year
- Median mileage
- 20,900miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 36 complaints about the engine cooling of the 1993 Mazda RX-7, 44% of the 82 complaints for this model year. Where a mileage was given, the median is 20,900 miles. 9 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Oil line to turbo's collapsed causing the inner coolers to be flooded with oil. This was caused by the apex seal coming off in the rotary tube which caused the compression levels to drop. This damage costs me in excess $10000 and happened at 30000 miles. An investigation is currently under way.”
NHTSA complaint #10018854, filed 2003-05, 31,000 miles“The consumer received a recall NHTSA#94-v-094-000 on may 1997 on the radiator cap pressure relief valve. The release pressure was set too high which could cause the coolant to reach temperatures that exceed thermal design limits of some components of the coolant system. Should this occur the engine coolant could leak directly on top of the engine. The consumer stated this recall failed. The recall was partially completed. Both required replacement of the cooling system including the water pump which was not done because the vehicle lost the water pump on the road.”
NHTSA complaint #10040629, filed 2003-12, 10,800 miles“Recall site shows 3 recalls for 93 Mazda rx7. Engine cooling system recall says manufactured from dec 1991 to jan 1994 . My rx7 was manu feb 1992 and I feel should be included in this recall. Mazda however states that there is only 2 recalls on my car. This is my 2nd rx7. The first one I had was manufactured march 1992, one month after this current one. It was exact same car. It was recalled for all 3 showing in the recall database. So what do I do? Mazda says the cooling system is not a recall item for my car. I disagree. Please let me know if I'm writing to wrong place for what I need. …”
NHTSA complaint #708676, filed 1999-07“94 v 094 000/engine cooling system : this recall notice was received. Contacted manufacturer concerning other recalls founded on the web, they informed that vehicle had two recalls that were already completed, and recall concerning cooling system did not show up on this vehicle. Dealer was not notified at this time. Feel free to provide any further information.”
NHTSA complaint #8008874, filed 2002-04“While driving there is a gas odor which causes the occupant to become sick . Also, it may cause a fire if there is a fuel leak. Dealer replaced fuel injectors/fuel lines, etc., but problem is still occurring. Dealer cannot determine the cause of the problem. Please provide further information and VIN#.”
NHTSA complaint #842575, filed 1999-07Related recalls
- 94V094000May 11, 1994The radiator cap pressure relief valve release pressure is set too high. This can cause the coolant to reach temperatures that exceed the thermal design…Covers: Mazda RX-7 1993–1994
Related service bulletins
- 10154879Mar 20, 2019In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS…
Engine cooling: other model years
Other parts of the 1993 Mazda RX-7
20 complaintsElectrical system
17 complaintsTransmission and drivetrain
4 complaintsAir bags
2 complaintsOther or unknown
2 complaintsSteering
2 complaintsBody and structure
2 complaintsTires
2 complaintsVehicle speed control
2 complaintsBrakes
1 complaintsEngine
1 complaintsEquipment
1 complaints
← All problems reported for the 1993 Mazda RX-7
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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