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What’s wrong if your car starts but does not have refs

What's wrong if your car starts but does not have refs

Q: What’s wrong if your car starts but does not have refs

Answer:

If your car starts but doesn’t have revs (meaning the engine is not revving or responding to the accelerator), it could be caused by a number of issues. Here are a few possible reasons why this might be happening:

1. Clogged air filter:

A dirty air filter can restrict airflow to the engine, causing it to run poorly or not at all.

Learn more about Air Filter

How Often To Change Air Filter In Car? The Answer
5 Different Types of Air Cleaners Used In Automobile Engine

2. Faulty throttle position sensor:

The throttle position sensor tells the car’s computer how far the accelerator pedal is pressed. If the sensor is faulty, it may not send the correct signal to the computer, which can cause a lack of response from the engine.


All you need to know about Accelerator Pedal Position Sensors (APPS)

3. Bad fuel pump:

The fuel pump delivers fuel to the engine. If it is not working properly, the engine may not receive enough fuel to run correctly.


Diagnosing And Replacing A Mechanical Fuel Pump

4. Failed mass airflow sensor:

The mass airflow sensor measures the amount of air entering the engine and tells the computer how much fuel to inject. If the sensor is faulty, it can cause a lack of response from the engine.


A Vane Air flow (VAF) Sensor

READ: VEHICLE SENSORS: FUNCTIONS AND TYPES

VEHICLE SENSORS: FUNCTIONS AND TYPES

5. Ignition system failure:

If the car’s ignition system fails, it may not be able to ignite the fuel in the engine, causing a lack of response from the engine.


Battery Ignition System : Parts, Function, Working, Advantages and Disadvantageas
Spark plugs and glow plugs: what's the difference?

These are just a few of the possible reasons why a car may start but not have revs. It’s important to have a qualified mechanic diagnose and repair the issue to prevent further damage and ensure that your car is running safely and efficiently.

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