Why is My Car Revving High in Park?

November 9, 2023

If your car is revving on its own while it’s in park, this can be an indication of a number of different problems. The engine in your car is a powerful, but fragile, component that needs to be carefully maintained. Revving the engine while it’s in park can put unnecessary stress on different engine parts, leading to excessive wear and tear and reducing the lifespan of your vehicle.

Getting your car revved up while it’s in park can also cause the engine to overheat, which can damage or even destroy the motor. Overheating can also damage other important components like the catalytic converter, transmission, or fuel injectors.

Another reason why your engine may be revving in park is because the ECU has a software or hardware issue. The ECU is responsible for managing all the different systems in your vehicle, including the engine, transmission, and emissions control. If the ECU isn’t functioning properly, it can send incorrect signals to your engine causing it to rev when you press the gas pedal.

The most common reason why your car revs in park is because the engine is overheating. The engine is a large pump that sucks in air, compresses it, and then combusts it to produce energy for the wheels. Your engine can be very sensitive to the temperature and pressure changes it experiences, so it needs to be cooled down by the radiator in order to operate properly.


Traffic Dave is on a mission to help traffic engineers, transportation planners, and other transportation professionals improve our world.
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram