Q:

Why would the car hesitate when pressing on the gas?

A:

Quick Answer

Dirty fuel injectors or vacuum leaks can cause a car to hesitate when the gas is pressed. It can also be caused by low fuel pressure.

 Know More

Full Answer

The problem can sometimes be diagnosed using a scan tool. The tool checks for engine misfires and fuel readings.

If the owner suspects a vacuum leak, they should check to ensure all hoses are connected tightly and are free of holes and cracks.

The repairs the will be required depend on the issue at hand. For instance, it a vacuum leak is occurring, a hose may need replaced. If there is a lack of fuel pressure, the injectors or fuel filter may need cleaned or replaced.

Learn more about Car Parts & Maintenance
Sources:

Related Questions

  • Q:

    What is multi-point fuel injection?

    A:

    Multi-point fuel injection, or MPFI, is a gasoline delivery system that uses four individual fuel injectors to evenly disperse gas into an engine´s combustion chambers. MPFI was developed to succeed the older single-point fuel injection systems.

    Full Answer >
  • Q:

    How do you clean fuel injectors?

    A:

    To clean fuel injectors, disconnect the fuel pump, connect it to the gas tank, disengage the pressure regulator, connect and open the cleaning kit, run the engine, disconnect the kit, and reconnect the fuel pump. This one-hour procedure requires a fuel injector cleaning kit, rubber tubing, the vehicle manual and the vehicle key.

    Full Answer >
  • Q:

    Why would a car stutter when accelerating?

    A:

    There are numerous reasons a car stutters when accelerating, including vacuum leaks, wiring issues and faulty sensors, according to AutoHub 360. In some cases, bad weather can cause this problem. When the engine is cold, moisture can collect on the distributor cap and cause the electrical current to the engine to misfire. When a car stutters during acceleration, it is a symptom of an underlying engine issue.

    Full Answer >
  • Q:

    Why does my car whistle when I accelerate?

    A:

    Whistling noises that occur when accelerating a vehicle are often due to vacuum leaks under the hood. If a vacuum leak is the cause, the car is likely to make the same noise upon pressing the accelerator when the vehicle is idling.

    Full Answer >

Explore