Q: My car won't accelerate although I replaced the throttle body and the accelerator pedal.

asked by on

A couple of weeks back I got in my car and turned it on as usual, but after a second it turned of. I tried starting the car again and it wouldn't last on. So I began stepping on the gas while I turned the key and I got it to maintain power, but when I put it in drive, the car would not accelerate. I have now replaced the throttle body and the accelerator pedal and even attempted the relearn procedures but they don't seem to work. First the throttle valve closed position does not click how it's supposed to and then when doing the idle volume procedure, the Engine check light won't blink therefore not allowing the car to learn the procedure. I do no know what else to do, I already tried disconnecting both parts and connecting them again then doing the reprogram but still no success.

My car has 158520 miles.
My car has an automatic transmission.

Hi there. Check the Idle Air Control valve (IAC) and see if it’s sticking or not working. The IAC valve controls the engine’s idle and keeps the engine at an optimal operating speed when the throttle is pushed or not. Usually the engine will race up and down when the valve is not working, but sometimes the engine will loose power and stall out. If you need further assistance with your engine idle not working properly, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car won't accelerate although I replaced the throttle body and the accelerator pedal.

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: Headlights and fog lights won't come on

Hey there. You've covered the basics it seems. This problem may be more than just replacing a part. A technician with access to the wiring diagram for the circuit will be able to check for power and ground along certain...

Q: Tachometer only goes up.

Hello and thanks for contacting YourMechanic. It seems that your tachometer is loosing voltage in the rheostat (the part that makes the meter work). The tachometer gets its signal from the computer or the ignition coil pack ground circuit. If...

Q: I was told I have oil coming through the air intake does that mean I need a new engine??

If your PCV valve is clogged then you may get excessive blow by of combustion gases and oil into the intake system. You should have the PCV valve replaced and intake cleaned out of oil. If problem continues then you...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...