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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

YearElectrical complaintsCrashesInjuriesRecalls
19891000
19884100
19876010
19861000
19851000
19843110

Latest RX7 electrical complaints

1986 Mazda RX7Electrical systemFuel systemFire

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

Filed Incident Electrical system · Fuel / propulsion systemNHTSA 10512468
1987 Mazda RX7Electrical systemEngine & coolingFuel systemFire

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

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 10483752
1987 Mazda RX7Fuel systemElectrical system

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

Filed Incident Fuel system, gasoline · Fuel system, other · Electrical systemNHTSA 10129334
1988 Mazda RX7Electrical systemFire

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

Filed Incident Electrical systemNHTSA 10091987
1987 Mazda RX7Electrical systemFire

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

Filed Incident Electrical systemNHTSA 10058167
1988 Mazda RX7Electrical systemFire

I have now had two fires from failed pulsation dampners. Very poor design.*Ak

Filed Incident Electrical systemNHTSA 764212
1989 Mazda RX7Electrical system

"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

Filed Incident Electrical systemNHTSA 759846
1987 Mazda RX7Fuel systemElectrical systemFire

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

Filed Incident Fuel system, gasoline · Electrical systemNHTSA 759104
1987 Mazda RX7Fuel systemElectrical systemFire

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

Filed Incident Fuel system, gasoline · Electrical systemNHTSA 759063
1988 Mazda RX7Electrical systemCrashFire2 deaths

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

Filed Incident Electrical systemNHTSA 755323
1984 Mazda RX7Electrical systemFire

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

Filed Electrical systemNHTSA 897215
1987 Mazda RX7Electrical systemFire1 injury

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

Filed Incident Electrical systemNHTSA 725298
1988 Mazda RX7Electrical systemFire

Engine wiring harness caused fire which damaged the engine.

Filed Incident Electrical systemNHTSA 537850

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

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