How to Replace a Throttle Controller

Most modern vehicles do not have a traditional throttle cable. Instead, they use what’s referred to as electronic throttle controller or throttle actuator control. This system typically consists of a control module, sensors (such as the throttle position sensor and accelerator position sensor) and the throttle actuator. The control module receives input from these sensors. It then uses this information to determine actuator control to open and close the throttle. Common symptoms of a failed throttle controller include poor performance, rough idle, stalling and an illuminated check engine light.

Part 1 of 2: Removing the throttle controller

Materials Needed

locating the throttle controller

Step 1: Locate the throttle controller. The throttle controller is located on top of the engine between the air intake and the intake manifold.

  • Note: Some throttle controllers must be initialized using an OEM level scan tool after replacement. Consult the factory repair information for your vehicle prior to replacement.

disconnect the negative battery cable

Step 2: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside.

removing the air intake tube

Step 3: Remove the air intake tube. Loosen the clamps on each end of the air intake tube with a screwdriver. Then slide the air intake tube off.

  • Note: In some cases, the air intake tube may also have hoses and electrical connectors attached to it that must also be removed.

removing the electrical connector

Step 4: Remove the throttle controller electrical connector(s). Remove the throttle controller electrical connector(s) by pushing down on the tab and pulling it off. In some cases, the connectors may also have tabs that need to be pried back using a small flathead screwdriver.

removing the throttle body bolts

Step 5: Remove the throttle body bolts. Using a ratchet, remove the bolts holding the throttle body to the intake manifold.

removing the throttle controller

Step 6: Remove the throttle controller. Remove the throttle controller from the vehicle.

removing the throttle controller gasket

Step 7: Remove the throttle controller gasket. Carefully remove the throttle controller gasket by using a small screwdriver to pry it off. Clean any remaining gasket material by using brake cleaner applied to a rag.

Part 2 of 2: Installing the new throttle controller

Installing the new throttle controller

Step 1: Install the new throttle controller gasket. Install the new gasket and mount the new throttle controller in position.

install the throttle body bolts

Step 2: Install the throttle body bolts. Install the throttle body bolts by hand one at at time. Then tighten them down using a ratchet.

reinstalling the electrical connector

Step 3: Reinstall the electrical connector(s). Reinstall the connectors in the same way that you removed them.

reinstall the air intake tube

Step 4: Reinstall the air intake tube. Slide the tube into place and tighten down the clamps using a screwdriver.

reconnect the negative battery cable

Step 5: Reconnect the negative battery cable. Reconnect the negative battery cable and tighten it down.

That’s what it takes to replace your throttle controller. If this seems like a task you’d prefer to leave to a professional, YourMechanic offers expert throttle controller replacement at a time and place of your choice.


Next Step

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Recent Throttle Body Replacement reviews

Excellent Rating

(264)

Rating Summary
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Chuy

14 years of experience
277 reviews
Chuy
14 years of experience
Ford Focus - Throttle Body - Harvey, Illinois
Date: December 3, 2020 Re: Replacement Throttle Hi Chris, Mr. Chuy was great at servicing the problem. He was very knowledgeable about correcting the problem. Also it was very refreshing to be able to talk to the mechanic while correcting the problem. After correcting the problem he test drove the vehicle in which I appreciated. Overall, I'm thankful for the attention received toward addressing the issue. My car runs great and I'm so happy to have used your service. Many thanks for this company. Hope to see Mr. Chuy again when I schedule for my brakes and next oil chain if weather allowed. Best, loniecarriage@gmail.com 
Chevrolet Aveo5 - Throttle Body - Chicago, Illinois
Thanks chuy ..I appreciate your help so much ..u made me feel so much better about my car!! My baby is back on board

Matthew

33 years of experience
991 reviews
Matthew
33 years of experience
Hyundai Tucson - Throttle Body - Hampton, Virginia
Matt is amazing. His workmanship is unquestinable, on time, gets teh job done right the first time. Love working with him.
Mercedes-Benz CLK320 - Throttle Body - Hampton, Virginia
Matt was great and very knowledgeable. Thank you for fixing the immediate issue although I know it’s not quite there yet I trust only Matt to work on my car. Thank you Matt!

Brian

23 years of experience
483 reviews
Brian
23 years of experience
Chevrolet Suburban 1500 - Throttle Body - Jacksonville, Florida
Today was a follow up to yesterday's appt. Brian showed up on time and performed the work that he said was required and has been completed. I could not be more pleased. I have been in sales and marketing for over 25 years and I can honestly say that your team has been a pleasure to work with.
Ford Escape - Throttle Body - Jacksonville, Florida
Brian was very professional and courteous. He worked very fast and explained all the processes and why he was suggesting the next repairs. I trust his knowledge and for sure we will book an appointment with him for our next repair!

Attila

19 years of experience
723 reviews
Attila
19 years of experience
Volvo XC90 - Throttle Body - Morris Plains, New Jersey
Attila was fantastic! He was timely (even arrived earlier than the appointment time), extremely courteous, completed everything and thoroughly walked through every step of the work he did, including the post-fix inspection. Also took the time to recommend things that will need work in the future. Would absolutely recommend him to anyone who needs work done on their car, whether it be a small task or a major one.
Infiniti EX35 - Throttle Body - Basking Ridge, New Jersey
attila was able to take some complex question that I had and deal with them effectively and make me much more comfortable about the diagnosis that the dealer provided.

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