If your Chevy Silverado has a bad throttle body, it can cause it to run terribly. Common symptoms of a bad throttle body include, dirt and grime, the check engine light, and an erratic idle. Your Silverado’s throttle body controls the amount of air that enters the engine.
Full Answer
Can You rebuild throttle body?
If you need to repair your throttle body, and a throttle body assembly is not available for your vehicle, a throttle body repair kit is the perfect solution. At O'Reilly Auto Parts, our throttle body repair kits include all the parts you need to rebuild your original throttle body. Click to see full answer.
Is throttle body considered part of th motor?
The Throttle body assy is not internally lubricated. The motor that you are talking about is part of the throttle body assembly. The transmission control module would also not be covered under that warranty, unless it was inside the transmission. The throttle body on that vehicle is controlled by the engine control computer.
Can a throttle body be too big?
Yes. A large throttle body will provide you with a handful of benefits with one of the most notable being a boost to overall horsepower. It will also improve acceleration performance and so much more. Within this guide, you’re going to learn more about the throttle body and the benefits that can be obtained by making the upgrade to a bigger one.
How do you replace a throttle body Chevy Trailblazer?
Here’s the throttle body relearn procedure
- Start the engine and let it idle in park for 3 minutes. During that period the idle may be higher idle than normal.
- After 3 minutes, turn the engine off and leave it off for 60- seconds.
- Start the engine again and let it idle in park for 3 minutes one more time. ...
What happens when the throttle body is faulty?
When the throttle body is not operating effectively, one of the tell-tale signs is poor or low idling. This includes the engine stalling after coming to a stop, a very low idle after starting, or stalling when the accelerator pedal is pressed down rapidly.
How much is a Chevy throttle body?
The average cost for a Chevrolet Silverado 1500 throttle body replacement is between $324 and $423. Labor costs are estimated between $55 and $69 while parts are priced between $269 and $353. This range does not include taxes and fees, and does not factor in your specific model year or unique location.
How do you reset the throttle body on a Chevy Silverado?
0:322:05GM Truck Electronic Throttle Body (ETB) Relearn Procedure - YouTubeYouTubeStart of suggested clipEnd of suggested clipNext turn the ignition off for 60 seconds. Then start and idle the engine in Park for 3 minutesMoreNext turn the ignition off for 60 seconds. Then start and idle the engine in Park for 3 minutes again after the 3 minute runtime the engine should be idling normally.
What does the throttle body do?
The purpose of the throttle body is to control air intake to the engine.
How much is a throttle body for a 2003 Chevy Silverado?
We currently carry 8 Throttle Body products to choose from for your 2003 Chevrolet Silverado 1500, and our inventory prices range from as little as $145.36 up to $314.16.
How do you relearn a throttle body?
1:112:42Throttle Body Relearn: When Should I Reprogram My Car's ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou might have to let it run for three minutes and then shut the vehicle off. And then run it againMoreYou might have to let it run for three minutes and then shut the vehicle off. And then run it again for three minutes. It depends on the type of vehicle.
What happens if you dont reset throttle body?
If the TPS is causing your ECM to think that the throttle is closed when it isn't, it'll reduce the amount of fuel in the air/fuel mixture and cause the engine to run lean. Without enough fuel in the mixture, the engine will fail to make as much power as it normally does.
What happens if you don't relearn your throttle body?
What happens when you replace the throttle body? If you replace the throttle body, the PCM won't know and will continue to use the adaptive settings as if the carbon buildup is still in place. If you don't do a relearn procedure, the PCM will “hunt” for a new baseline idle.
How do you reset throttle body after replacing?
Leave the key off for a moment, turn the key to the "On" position again, wait 3 seconds, and press the accelerator 5 times in 5 seconds. Wait 7 seconds, and hold the accelerator down. The check engine light should start blinking, continue to hold pedal down until it stops blinking. You can then start the car.
Does a throttle body add horsepower?
A bigger throttle body means more air And since the engine is basically a large air pump, increasing the air intake level will increase the engine's power output as well, in some cases by up to 15 to 25 hp.
How do you know if you need a new throttle body?
The 7 Signs That Could Mean Your Throttle Body Needs CleaningGrime Build Up. ... Poor Fuel Economy. ... Poor or High Idle. ... Uneven or Slow Acceleration. ... Electrical Problems. ... Airflow Disruptions. ... Check Engine Light.
Why would a throttle body need to be replaced?
What is this? If your vehicle's throttle body is defective enough you might find that your vehicle can't stay running. This happens because the engine isn't getting enough air, and since the throttle body can't open further it can't up the air intake to prevent the engine from stalling.
What is a throttle body?
Throttle Body Assembly by Bosch®. The throttle body is an essential part of the inlet air stream of modern gasoline engines. It is designed to control the amount of fresh air entering the engine. The throttle body assembly consists of...
What is a professional fuel injection throttle body?
Professional™ Fuel Injection Throttle Body by ACDelco®. Bring your vehicle’s fuel system back to its top shape with this top-notch part. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide...
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What does a bad throttle body mean on a 2019 Chevy Silverado?
November 11, 2019 by Jason. If your Chevy Silverado has a bad throttle body, it can cause it to run terribly. Common symptoms of a bad throttle body include, dirt and grime, the check engine light, and an erratic idle. Your Silverado’s throttle body controls the amount of air that enters the engine. You control the throttle body position ...
How does a bad throttle body affect a Silverado?
So, the symptoms of a bad throttle body will all affect how the vehicle feels responding to your throttle input. A rough idle is also a very common symptom.
How to tell if a Silverado throttle is dirty?
Dirty Throttle Body. While coming to a stop, you may notice that your Silverado feels like it wants to die. The RPM may shoot up by as much as 500 until it finally finds the proper idle speed. This is a telltale sign of a dirty throttle body.
What happens if my Silverado is not letting enough air in?
If your Silverado is not letting enough air in at idle, it’ll struggle to keep running. The idle speed will keep jumping.
Is the check engine light on a Silverado bad?
The check engine light is one of the most common symptoms of a bad throttle body in your Silverado. The check engine light itself being on is not a bad thing. The trouble codes that are stored in the computer can tell a lot about what is actually going on. This makes diagnosing the throttle body much easier.
Can you use throttle body cleaner on a TV?
Make sure that you use throttle body cleaner, and not brake parts cleaner, WD40, or even carb cleaner. Cleaning it is easy and cost effective. If playback doesn't begin shortly, try restarting your device. Videos you watch may be added to the TV's watch history and influence TV recommendations.
Is a throttle body bad?
It would be prudent to inspect the throttle body to see if there is any grime buildup present. Often the throttle body isn’t necessarily “bad”. It’s just dirty. A dirty throttle body will exhibit many of the symptoms of a bad throttle body.
Service Engine Soon Light
The check engine light is one of the most common symptoms of a bad throttle body in your Trax. The check engine light itself being on is not a bad thing. The trouble codes that are stored in the computer can tell a lot about what is actually going on. This makes diagnosing the throttle body much easier.
Dirty Throttle Body
While coming to a stop, you may notice that your Trax feels like it wants to die. The RPM may shoot up by as much as 500 until it finally finds the proper idle speed. This is a telltale sign of a dirty throttle body.
Wiring Issues
As your Trax’s throttle body opens, the various sensors in your Trax measure the air coming in, and oxygen content coming out. If any of these sensors goes bad, it can feel the same as a bad throttle body. That’s why getting the trouble codes is so important. It can really narrow down what you are looking for.
Erratic Idle
If your Trax is not letting enough air in at idle, it’ll struggle to keep running. The idle speed will keep jumping.
What is a throttle body?
The throttle body is an important mechanical component found in fuel injected vehicles that controls and regulates the amount of air flowing into the engine. When the throttle body is in its appropriate condition, the engine receives an ideal air and fuel ratio and offers optimum performance. However, when the throttle body is damaged, ...
Where is the throttle body located?
Throttle Body Location. The throttle body is most often located on the intake manifold at the big hose from the turbocharger or air filter . Usually, aluminum is used for the manufacture of the throttle body. The location of the throttle body can be a little different for different vehicles. However, according to the throttle body’s purpose, it ...
How to tell if throttle body is bad?
The most common symptom of a bad throttle body is a check engine light on the dashboard. You may also notice signs like rough idle, rough acceleration, or misfires during acceleration. High or low Idle RPM is also quite common when your throttle body is bad.
Why is the combustion process not occurring properly when the throttle body is damaged?
However, the combustion process will not occur properly when the throttle body is damaged due to an imperfect air/fuel mixture.
What happens if the throttle body is not properly air cooled?
If the engine is not receiving proper air supply due to a damaged throttle body, the engine will suffer , and as a result, the driver would experience a drop in performance.
Where does dirt come from in a car?
Even if you have an air filter on your car, dirt and soot come from the turbocharger, EGR valve, and the crankcase ventilation and get stuck on the throttle body valve. After a whole, it will cover the valve so much that the RPM will be affected.
How much does it cost to replace a throttle body?
The average throttle body replacement cost is between $250 and $650, depending on the car model and labor costs. The throttle body cost between $200 and $500, while the labor cost is around $50 and $150. The throttle body can be differently priced depending on different vehicles, models, and the manufacturing company.
What is a throttle body?
The throttle body is a tube containing a pivoting flat valve (butterfly) that is used to control the amount of air entering an engine. In an electronically fuel-injected car, a throttle position sensor and air flow sensor communicate with the computer, which supplies the corresponding amount of fuel needed at the injectors.
Where is the throttle body located?
On older carbureted engines, the throttle body is built into the carburetor and via mechanical means and engine vacuum, more fuel is delivered as the valve opens.
How many throttle bodies?
Most autos have just one large throttle body, but some larger-engined cars can have one for each bank of cylinders, or even one on every cylinder, although these are relatively uncommon. Some systems use a throttle body with two smaller throats and butterflies instead of one large one, notably the early Ford truck EFI motors, but the function is the same.
What are the problems with throttle body?
Throttle body problems. Other throttle body problems can include faulty Idle Air Control (IAC) valves or Manifold Absolute Pressure (MAP) sensors. The IAC valve allows the computer to control idle speed, by bleeding small amounts of air into the intake.
How to clean throttle body after removing it from intake?
After removing it from the intake, clean the throttle body with an aerosol solvent carburetor/fuel injection cleaner and small brush, or cotton cloth. Pay particular attention to the throttle butterfly, which is attached with small screws (often staked to the throttle pivot to prevent removal) but you don’t need to remove it to clean it.