How Long Does a Carburetor Last?

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.


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Alejandro

9 years of experience
80 reviews
Alejandro
9 years of experience
Dodge Charger V8-5.2L - Carburetor - Los Angeles, California
Alejandro is pleasant, on time and knowledgeable. Highly recommended.

Jacob

12 years of experience
329 reviews
Jacob
12 years of experience
Chevrolet Impala V8-5.4L - Carburetor - Dallas, Texas
Jacob did a great job on my repair. Always punctual and great job replacing my carburetor.

Scott

34 years of experience
539 reviews
Scott
34 years of experience
Chevrolet Chevelle V8-5.0L - Carburetor - Denver, Colorado
He's the beast mechanic you have by far..Excellent job and knows old cars like a pro!!!Extremely pleased with service ..

Chris

22 years of experience
2198 reviews
Chris
22 years of experience
Ford F-250 V8-5.9L - Carburetor - Newport Beach, California
Great work. That man is fast with repairs! Always patient and pleasant.

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