Skip the auto shop - Our mechanics make house calls

Q: Dirty throttle body code

asked by on

Service Engine Soon light is on. It also says the engine has a loss of power. The code that came up was for a dirty throttle body. I removed the butterfly part of throttle body and cleaned and reinstalled it, but it still will not throttle up.

Hello. There are very few diagnostic trouble codes that point out dirty components, maybe there was a motor control fault or a malfunction with the throttle body valve position sensor. The throttle body specifically is machined within tight limits and should never be disassembled. Electronically controlled throttle bodies are very sensitive, even pushing the valve open with a finger in many cases renders the part useless. Have an experienced mechanic, like the ones we have here at YourMechanic, inspect the the vehicle and have the throttle body replaced if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2004 Chevrolet Monte Carlo won't stay running

Hello. Problems such as these can be caused by many things. Anything ranging from a bad vacuum leak, to a faulty idle air control valve will cause symptoms such as these. As engine performance problems can many times be hard...

Q: Brake noise

Try and drive it for a couple weeks after inspecting to make sure everything was installed correctly. The noise may change after the pads are seated into the rotors. When a pad and rotor are new, they will not match...

Q: Throttle control warning light coming on

Hello, If the throttle control warning light is on and the truck has no power, it means that there is a malfunction. Specifically in the throttle body, and the computer does not know how much gas the car needs in...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...