Pulsation 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
Electrical system
Mazda RX7 Electrical problems by year
16 complaints filed with NHTSA about the Mazda RX7's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Electrical complaints by model year
Latest RX7 electrical complaints
On 11/07/2012 at approximately 7:15 a.M. While leaving work I noticed smoke coming from behind the radio. I immediately pulled over and realized there was fire coming from the engine compartment. I was able to put it out quickly before it spread. The damage to my car was somewhat substantial under the intake manifold. I took it to a local repair shop and it was diagnosed, and explained that it's a common issue with this particular model. I did a little more research and found that the issue is the pulsation dampener that is attached to the fuel rail mounted under the intake manifold causing it to fail and com-bust. *Tr
Dt: the contact states that he owns a 1987 mazda rx7. He states a recall came out nhtsa campaign 05v317000. Contact's vehicle was having the same type of problems with his gas gauge working intermediately and a fuel leakage. Just recently he replaced the radiator with a new one. Took vehicle to a mechanic and they told him that the fuel system would needed to be replaced because no fuel was getting to the lines. Also, the modulator needs=ed to be replaced because it was not getting a spark. He replaced alternator and starter. *Ak
While driving down the street vehicle caught on fire and burned. There was no indication that vehicle was burning until another person caught up with consumer and told him that there was fire under vehicle. He stopped and put the fire out. Then, fire department was called. Consumer called the manufacturer and found out that there was no recall on this vehicle. Consumer had vehicle towed to dealer, who told him that this was a common problem with mazdas rx7. *Ak
I have a 1987 rx7 na, the engine caught on fire the other day and I luckily had an extinguisher to put it out with or I would have been toast. Most likely a faulty pulsation damper or a short in some of the wires, I am not sure.*Ak
I have now had two fires from failed pulsation dampners. Very poor design.*Ak
"Headlight harness" melted and knocked out "headlight switch"...Known problem and common, not recognized by mazda as worthy of being fixed. Takes out driving lights, and interior lights, which is very unsafe at night in dark regions. Contacted local mazda dealer, was told it was never recalled or anything. Nlm
Burned alot of things like the engine wiring harness, injectors, misc hoses, intake manifold, hood liner, etc. Good thing I had a fire extinguisher in the car or the whole car would have been lost. *Ak
I am an expert on the 2nd generation 1986-1991 rx-7 vehicles (see http://fc3s-pro.Com). I find these pulsation damper fires too common with serious/expensive damage - typically will burn wiring harness ($1,200) and all fuel injectors (4x$300) under the manifold. Mazda and all mazda dealers refuse to acknowledge this problem. I wish there was a mandatory recall on this part, as the potential of engine fires is way too dangerous. Please feel free to contact me. I am also very close with the internet community of these owners. *Ak
Intersection collision. The mazda was hit on the right front quarter panel and spun around into a tree. The car then burst into flames. *Ak
After parking vehice smelled smoke. Soon afterwards, flames started. Second time, while traveling smeled smoke inside of vehicle. Consumer pulled vehicle over, and noticed fire under hood. Consumer put fire out. Dealer has been contacted. Please provide furhter information.*Ak
Vehicle engine fire at idle speed while stopped, vehicle occupied, raw fuel caught fire underhood,damaged many fuel system components,caused minor burns to occupant/operator. *Ak
NO SUMMARY LISTED FOR THIS VEHICLE. *AK
Engine wiring harness caused fire which damaged the engine.
IGNITOR/COIL FAILED, CAUSING VEHICLE TO STALL. *AK
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data