Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Carburetor Last?

How Long Does a Carburetor Last?

carburetor

The carburetor combines fuel and air in the engine by using an intake vacuum supply. The air is pulled down through to the carburetor by the intake vacuum while fuel is siphoned from the carburetor’s fuel bowl. From here, the fuel and air form a combustible mixture that powers the engine. At high engine speeds, fuel is pulled through the metering jets into the narrowest part of the carburetor throat. It then travels down to the intake manifold where it is burned to produce power in the cylinders.

If there is not enough fuel in the mixture, the engine could be damaged or the vehicle will not run at all. This is called running lean. If there is too much fuel, the engine can flood, run poorly, have bad fuel economy, or become very smoky while running. This is called running rich. The carburetor plays an important part in keeping your vehicle in smooth operating condition.

Problems with the carburetor are often attributed to the part becoming dirty. In addition, different parts can fail within the carburetor. For example, if the power valve inside the carburetor becomes bad, a misfire in the engine will occur. This is because the power valve becomes clogged and then a reduced amount of fuel and air is sent to the engine.

Flooding is another problem with the carburetor that can be a dangerous situation. This happens when dirt gets into the needle valve and prevents the valve from closing. Fuel keeps flowing and spills into the carburetor throat. A flooded engine will not start, and is a fire hazard if fuel leaks onto the hot engine.

Since the carburetor can become damaged or clogged over time, you should be aware of the symptoms that indicate the carburetor needs to be replaced.Signs that indicate your carburetor needs to be replaced include:

  • Poor fuel economy

  • The vehicle idles too fast

  • Your car floods when you try to start it

  • The vehicle has a rough idle

  • Your car stalls at low speeds

  • The vehicle hesitates under load

Sometimes, the part can be rebuilt; it just depends on the extent of the damage. Have a professional mechanic make that distinction to get any components of your car repaired as necessary.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...

Related questions

Q: Upgrade 4 barrel carburetor - 1989 Jeep Grand Wagoneer

I believe your Wagoneer has a "bimetallic choke coil" choke coil actuator (non-electric), so, you would have to add an electrical source that is "hot" when the ignition key is in the Start or Run position. Some Wagoneer models came...

Q: Maintainence for my car

If the engine has high miles, I would first consider losses in cylinder compression as a possible cause of the degraded mileage. Other possibilities are a malfunctioning oxygen sensor (check output on an automotive scope) and a stuck open cooling...

Q: Replacing plug on Carburetor

The plug is designed to prevent tampering although you should examine the plug to be sure it is not also intended to prevent the mixture screw from moving once the adjustment is made. If the plug is only "concealing" the...