How to Start a Flooded Engine Carburetor

A more common mechanical ailment for cars that employ a carburetor rather than fuel injection, a flooded engine occurs when your engine is overcome with too much fuel.

This happens when there is a disproportionate mixture of fuel and air and will typically occur when you hit the gas too hard or pump the accelerator too much when starting your car. Vehicles that employ fuel injection like the 2016 Toyota Camry will see this happen most often when in extreme cold.

Steps to Follow for Immediate Fix of How to Start a Flooded Engine Carburetor

Method 1

  1. Open the hood of your car, Take the cover off the air filter housing by unscrewing the butterfly nut on top, you can sense strong smell of gasoline.
  2. Press your foot on gas pedal hard on to the floor and don’t pump it after turn the ignition key to a start position.
  3. Attempt to start the car while pressing the gas pedal to the floor. Hold the “Run” position for no more than five seconds. The fuel should flow through the carburetor and provoke a “rough” start.
  4. After then pumping the pedal to feed gas, car will eventually work through the vapor lock and idle smoothly.
  5. Wait and for five and allow the car to sit idle and observe the engine noise is smooth and consistent this will make sure the gas is flowing in to the engine smoothly.
  6. This method will hold the throttle open, introducing more air into the engine to balance out the excess fuel.

Method 2

  1. Open the hood of your car and let excessive fuel evaporate for as long as you can. After about 20 minutes try starting your car again without hitting the gas pedal
  2. If this still does not work, you may have to check your spark plugs. When excess fuel floods the engine, it can soak spark plugs.
  3. If the car still fail to start and continue to get flood then you would need to check the fuel injectors and use the fuel injector cleaner.

View More About: Common Reasons For Check Engine Light in Toyota


  • Dark smoke from your vehicle’s exhaust system is an indication of flooded engine.
  • Flooded carbureted engine resulted by faulty fuel system, bad filter or sign of adjustment issue.
  • Inspect immediately from expert mechanic if the problem still in place or not.


  • A flooding carburetor can cause the fuel to overflow on top of the hot engine, creating a severe fire hazard.

About The Author

Avatar for Ibrar Ayyub

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

Follow Us:
All About Cars News Gadgets >> Auto Repair >> How to Start a Flooded Engine Carburetor

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top