HOW TO KNOW A BAD THROTTLE POSITION SENSOR

If you’ve recently been noticing any stalling or acceleration issues with your car, you may have a faulty throttle position sensor on your hands. In your car, the throttle position sensor reads the position of the gas pedal and sends it to the engine control unit. This unit makes use of the information to then control the rest of the throttle body, which is a vital part of the vehicle’s air intake system. Without a properly functioning sensor, the ratio of the engine’s air-fuel mixture will be affected, and the car will have problems running smoothly.

Below are many key signs of a bad throttle position sensor.

DELAYED ACCELERATION

One of the signs of throttle position sensor problems is slightly delayed acceleration. If you observe a delay between the time you press on the gas pedal and the time the car actually accelerates, take the car directly to a mechanic. Additionally, if your car tends to stumble during acceleration, a bad throttle position sensor is likely the reason.

RANDOM STALLING

Another clear symptom of a bad throttle position sensor is random stalling, happening regardless of whether your car is idling or being driven. Stalling can mean other issues, of course, but if this happens in conjunction with any of the other signs, or if it becomes a regular occurrence with your car, it will need to be looked at.

SPEED INCREASES

If you find that your car increases speed on its own, especially when being driven on a highway, immediately take it to a mechanic for repairs, as this is a fairly straightforward symptom of a bad throttle position sensor.

PROBLEMS WITH SWITCHING GEARS

If a throttle position sensor is not properly reporting the accelerator position, then there can be issues switching gears as you increase your speed or slow down. Alone, this could mean a faulty transmission and costly repairs, but if you have already had acceleration issues, you can be confident this is a throttle position sensor problem instead.

LIT UP SERVICE LIGHT

A check engine light can obviously indicate any number of things, but one of the potential reasons for it lighting up is a faulty throttle position sensor. If you have a way of reading the cause of the light, you can do so, but should this happen, it’s always advised to immediately take your car to a mechanic in order to confirm the issue. While a malfunctioning sensor does not necessarily mean your vehicle will explode while driving, it is still a potential danger to you and the rest of your car if repairs are not made immediately.