How to Replace a Throttle Return Spring

On many vehicles, a mechanical throttle cable connects the accelerator pedal to the throttle. When the driver steps on the accelerator, the cable pulls the throttle open to allow more air into the engine. The throttle return spring pushes the throttle closed when the driver lets off the gas.

A weak or failed throttle return spring will prevent the throttle from easily returning to its resting position. This can result in engine racing and unintended acceleration.

Part 1 of 1: Replacing the throttle return spring

Materials Needed

How to Replace a Throttle Return Spring 2

Step 1: Locate the throttle return spring. The throttle return spring is located on the side of the carburetor.

How to Replace a Throttle Return Spring 3

Step 2: Remove the air cleaner assembly. Remove the wing nut by hand, then remove the air cleaner and air cleaner assembly from the top of the carburetor.

How to Replace a Throttle Return Spring 4

Step 3: Disconnect the throttle return spring. Disconnect the throttle return spring by carefully unhooking it at both ends using needle nose pliers.

How to Replace a Throttle Return Spring 5

Step 4: Connect the new throttle return spring. Hook the new throttle return spring through one of the two eyelets. Then carefully stretch and pull it through the second eyelet using needle nose pliers.

How to Replace a Throttle Return Spring 6

Step 5: Install the air cleaner assembly. Install the air cleaner assembly on top of the carburetor and secure it with the wing nut.

That’s what it takes to replace the throttle return spring. If this seems like a job you’d prefer to leave to a professional, YourMechanic offers expert throttle return spring replacement at the location of your choice.


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Recent Throttle Return Spring Replacement reviews

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140,027
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Isai

27 years of experience
230 reviews
Isai
27 years of experience
Chevrolet Monte Carlo - Throttle Return Spring - San Antonio, Texas
Isai was able to arrive a little earlier than scheduled which was great. My car is an older car and it uses a carburetor not fuel injection. Finding a mechanic that knows how to work on a car with a carburetor can be a real challenge. I found Isai to be very knowledgeable and through. He answered all my many questions. He is very friendly. I certainly would use him in the future.

Allen

36 years of experience
471 reviews
Allen
36 years of experience
Ford Mustang - Alternator Repair - Deland, Florida
Great experience...

Luis

9 years of experience
116 reviews
Luis
9 years of experience
Scion tC - Car is overheating - New Milford, New Jersey
Luis, was knowledgable, experienced and professional. Arrived on time, was very communicative and understands what he is looking at. Thanks Luis!

Gerron

34 years of experience
185 reviews
Gerron
34 years of experience
Infiniti I35 - Car is making a noise - Portland, Oregon
Gerron showed up on time and quickly diagnosed the problem with my car. He explained the options I had and we quickly found a satisfactory solution to get my car back in top shape. He is extremely kind and very easy to approach with complex explanations and situations.

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