1987 Mazda Rx-7 problems

Common 1987 Mazda Rx-7 problems

The Mazda RX-7, particularly the 1987 model, is known for several common problems that affect its performance and reliability. These issues are primarily related to the engine, electrical system, and suspension components

• Starting Problems: One of the most common issues with the 1987 Mazda RX-7 is difficulty starting the engine. This problem can be caused by a variety of factors, including a weak battery, a failing starter, or a malfunctioning security relay. The security relay, which is located under the kick panel, is a crucial component that can prevent the car from starting if it is broken. To bypass this issue temporarily, you can jump the security relay by shorting out the middle pin. Additionally, there is a sensor in the clutch pedal that detects whether the clutch is pressed or not. If this sensor fails, it can also prevent the car from starting .

• Clutch Failure: Another common problem with the RX-7 is clutch failure. This issue can manifest as the car surging forward or juddering as you release the clutch pedal. If you experience these symptoms, it is likely that you need to replace the clutch. This problem is more common in older RX-7 models, as the clutch wears out over time. Replacing the clutch is a complex process that requires specialized tools and knowledge.

• Suspension Problems: The RX-7's suspension is prone to failure, particularly the rear suspension bushes. This issue can cause a knocking noise, particularly when driving over speed bumps or rough surfaces. Replacing the rear suspension bushes is the only way to fix this problem. Additionally, the door trim around the inside of the door is prone to breaking, as it is poorly made and flimsy. This issue can be resolved by replacing the broken parts.

• Electrical Gremlins: The RX-7's electrical system is prone to gremlins, particularly in the circuit boards. These gremlins can be caused by cold solder joints, which can be fixed by re-soldering the joints. This issue is more common in older RX-7 models, as the solder joints can become cold over time.

• Fuel System Issues: The RX-7's fuel system is also prone to issues, particularly the fuel pump and fuel pressure regulator. If the fuel pump is working but the car still won't start, it is possible that the fuel pressure regulator is defective. Checking the fuel pressure and replacing the fuel pressure regulator can fix this issue. Additionally, the incoming valve at the carb can become stuck due to dirty fuel filters, which can prevent the injectors from firing properly.

• Oil Leaks: The RX-7's engine is prone to oil leaks, particularly from the oil pressure sender or the oil filter pedestal. These leaks can be fixed by replacing the affected parts or re-sealing the leaking components .
• Turbo Seals: The RX-7's turbo seals can also fail, causing the car to smoke on deceleration. This issue is more common in older models and should be avoided unless you are looking for a project and are up for rebuilding the engine .

In summary, the 1987 Mazda RX-7 is known for several common problems that affect its performance and reliability. These issues are primarily related to the engine, electrical system, and suspension components. While some of these issues can be fixed with simple repairs, others require more complex solutions that may require specialized tools and knowledge. Regular maintenance and upgrades can help prevent some of these issues, but they are an inherent part of owning an older sports car like the RX-7.

Are RX-7 engines reliable?

They aren't more or less reliable than any other engine (okay, they're way more reliable than Subaru engines...). The problems are with heat and lubrication. The early RX8s had a flawed design. 2nd and 3rd Gen RX7s had problems with their OMPs and terrible electrical problems.

Why is RX-7 engine bad?

Rotary engines are known for incomplete combustion, oil consumption, and high emissions, relegating the RX-7 to project car status rather than daily drivers. As Hagerty reports, somewhere around 13,879 third-generation RX-7s were sold in the U.S. between 1993 and 1995.

How long do RX-7 engines last?

How long does an RX7 engine last? Proper care and maintenance over 32 years or 400,000klm.

Why is the Mazda RX-7 banned in the US?

Any Mazda RX-7 produced after 1995 is not allowed or is banned in the United States. This is because of the left-hand driving configuration of the vehicle. This means that if you want to own one, you have a couple of options. One is to find a used RX-7 in the United States that is a 1995 year model or older.

1987 Mazda Rx-7 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Mazda Rx-7 problems, we found that the most common problems with these 2023 model year vehicles are:

• Electrical system problems
• Engine problems
• Fuel/propulsion system problems

The graph below shows statistics for all 1987 Mazda Rx-7 vehicle components and the number of complaints received.