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Cars Accessories And Auto Services In Dumaguete City, Purok 6 East Balabag Valencia Negros Oriental, Valencia (2026)

08/03/2026

Ford Ranger 2024 💙
Tail light replacement
Body alignment and retouch some dents

03/12/2024

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Beware of the most important reasons for the car not accelerating or its weak traction
Common causes of slow acceleration of the car
Dirty (unclean) mass air flow sensor (MAF), faulty spark plugs, faulty throttle position sensor, clogged catalytic converter, faulty oxygen sensor, clogged air filter, and fuel system malfunction.

1- Clogged air filter.
A clogged air filter is the most common reason for a car to feel slow when accelerating because it allows less air to pass through.

2- (Air sensor) The mass air flow sensor, or MAF sensor, is an essential component of the fuel injection system. It is located between the air filter box and the throttle valve. The MAF ensures that the proper amount of fuel and air is mixed in the engine's internal combustion chamber.

The MAF can become dirty or defective as it wears out over time. A bad mass air flow sensor can send incorrect data to the car's internal system, causing it to incorrectly calculate the ideal amount of fuel entering the combustion system.

However, a dirty air flow sensor can be cleaned with a special sensor cleaner, while a faulty one should be replaced immediately.

3- Oxygen sensor malfunction.
There are several types of oxygen sensors, but they all serve the same purpose: regulating the air-fuel ratio by determining the amount of oxygen. If the sensor is damaged, the engine will not be able to maintain the proper ratio of fuel and air.

This is another reason why the car feels sluggish when accelerating, or the driver experiences irregular deceleration, or the car loses power completely.

Moreover, poor acceleration may occur if the oxygen sensor is dirty. In such cases, cleaning the oxygen sensor in the car may solve the problem.

A damaged oxygen sensor causes increased fuel consumption in the car

4- Spark plugs.
The spark plugs in the car generate the ignition needed to start the engine. A bad spark plug can cause a significant loss in performance and increase fuel consumption.

The cause of the car malfunction and poor acceleration can also be the presence of faulty spark plugs. Driving with faulty spark plugs can have serious consequences, so it should be addressed as a priority.

5- Clogged Catalytic Converter (Environmental Box).
The catalytic converter uses catalysts to convert toxic gases into less harmful gases. As a result, it is an important component of the exhaust system of an internal combustion engine vehicle.

If the catalytic converter is clogged or fails, your vehicle will emit dangerous gases and black smoke. A clogged catalytic converter is one of the most common reasons why a vehicle fails to accelerate when you press the accelerator pedal.

Fuel System Malfunction.
Fuel is essential for combustion in a vehicle's engine. However, when the fuel system fails, the engine is not supplied with enough fuel, leading to problems with the vehicle's acceleration.

There are several factors that can cause the fuel delivery method to deplete the fuel supply in a vehicle's engine. These factors include:

6- Fuel Injectors.
Fuel injectors regulate the amount of fuel that enters the combustion chamber through the fuel lines. Bad fuel injectors are those that become clogged over time due to fuel contaminants, preventing fuel delivery.

7- Faulty Fuel Pump.
The fuel pump transfers fuel from the tank through the fuel lines to the engine. A faulty fuel pump fails to supply fuel to the injectors, causing acceleration problems and, in severe cases, stalling...