Why Car Won’t Accelerate But Rpms Go Up?

Imagine you are in a hurry you step in your car and floor the gas pedal but the car won’t accelerate but rpms go up. This may be caused due to several reasons in this post we will know about the causes

If your car won’t accelerate but the rpm rises, it’s usually due to a faulty transmission or clogged air filters, rather than an engine problem. If you experience this problem, hire an auto mechanic to properly diagnose and repair it.

car won't accelerate but rpms go up

Why Car Won’t Accelerate But Rpms Go Up?

Power must be transmitted from the engine to the wheels in order for your car to drive. While this is a simplified view of how our cars work, it is a good starting point for determining where an issue may exist when your vehicle is not working properly. car won’t accelerate but rpms go up  it could be due to a number of factors.

1. • Poor Transmission Fluid (Automatic Transmission)

car won't accelerate but rpms go up

One of the reasons your car won’t accelerate but rpm rises is a low transmission fluid level. The transmission fluid’s function is to aid in the transfer of power to the wheels.

When the transmission fluid is low, power will only reach the torque converter and not the engine. Check the transmission fluid as soon as possible.

2. • Poor Torque Converter

The torque converter converts an engine’s mechanical power into hydraulic power. When the torque converter fails, it can no longer perform its function, and power cannot reach the transmission.

3. Damaged Clutch Disc (Manual Transmission)

Why Car Won't Accelerate But Rpms Go Up?

The manual transmission is no longer popular, especially in modern cars, but if your vehicle has one, a faulty clutch can cause you not to accelerate. When the clutch is no longer able to hold, it begins to slip off the flywheel, giving the impression that you have pushed the clutch in.

4. Failure of the Mass Air Flow Sensor

The name suggests that the primary purpose of an airflow sensor is to measure the amount of air that enters through the air intake. In most vehicles, the mass airflow sensor is attached to the air intake cleaner. A clogged or failing mass flow sensor may send an incorrect signal.

5. Inadequate Air/Fuel Ratio

If you’ve ruled out transmission problems but your engine is still sluggish, the problem could be with the intake or fuel injection systems. To achieve proper combustion, the right mixture of fuel and air must be combined in the engine’s cylinders, and if the sensors or air filter are not working properly,

Some of its internal components can be difficult to handle or repair; they are not as simple as cleaning your car plug or something similar; they are far more complex. As a result, we recommend that you consult with an expert who is well-versed in the subject.

6. ECM Issue

If all other options have been exhausted, the next step is to have a technician inspect your vehicle’s internal computer. A computer system known as the ECM (Engine Control Module) or ECU (Engine Control Unit) controls modern automobiles (Engine Control Unit). They, like any other piece of technology, require updates and can malfunction. If your vehicle is not performing as expected, contact your local technician to schedule an appointment.

Diagnostics Using OBD II

Why Car Won't Accelerate But Rpms Go Up?

It is simple and straightforward to use an OBD2 car diagnostic scanner.
1. Connect the standard OBD2 connector to the vehicle’s port, which is located beneath the driver’s side of the dashboard.
2. Start the car to activate the scan tool or code reader.
3. To check for engine codes, use the code reader’s “scan” button and follow the instructions on the screen.
4. A scan usually only takes a few seconds. When it’s finished, check the screen to see if the vehicle is reporting any trouble or error codes. Keep track of the information.
5. Use the scan tool to clear the code if you’ve used the data to repair the vehicle or simply want to see if the code was a one-time issue.


car won't accelerate but rpms go up

Q: Why is my RPM so high when I accelerate?

Transmission fluid serves as a coolant and aids in the transmission’s power transmission via the engine. As the transmission leaks, the fluid level drops, causing the gearbox band or torque converter to slip and the vehicle to rotate quickly and car won’t accelerate but rpms go up

Q. What is the sensation of transmission slippage?

It’s a transmission slipping problem if you notice your car is slow to respond, especially when changing gears.

Q. What is the source of these problems?

A. When the fuel filter in your car becomes dirty or clogged, it can sometimes prevent fuel flow into the engine; this can also be related to the fuel pump. A faulty fuel pump will prevent fuel from reaching the injector. A leaking fuel line could also be the cause of your car’s inability to accelerate.


When car won’t accelerate but rpms go up , there is a problem with getting engine power to the tires.

The power of an engine is transferred to the tires via the transmission and axles.

If an automatic transmission is low on ATF fluid, it will frequently malfunction. Examine the ATF fluid level to ensure it is correct. The torque converter may have failed as well, but it usually exhibits other symptoms before failing completely.

If you have a manual transmission, the clutch may have failed and you will need to replace it. When all other possibilities have been exhausted, a sensor or the ECM should be tested.

Leave a Comment