Do throttle bodys fail?
When a throttle body is not functioning correctly, some noticeable characteristics may be poor or very low idle. This can include stalling when coming to a stop or very low idle after starting, or even stalling if the throttle is quickly pressed (resulting in the throttle body plate opening and closing very quickly).
Should throttle body close completely?
If engine deposits are at fault, having your throttle body cleaned should be enough to resolve this issue. In that case, the throttle body blade will be able to close entirely when your car enters idle. Even when your throttle body’s blade closes entirely, some air has to get through to the intake manifold.
What can cause a throttle body to malfunction?
One of the main causes of a malfunctioning throttle body is internal contamination. Due to the contamination accumulated in the throttle body, the throttle valve can no longer move properly, causing problems with the control of the air supply. Another cause for a malfunctioning throttle body is the presence of one or more vacuum leaks.
When do you need to replace the throttle body?
Sometimes, however, the entire throttle system gives out and you’ll have to replace the entire throttle body, but this really only happens in high mileage vehicles. Most commonly, the throttle body temperature sensor is likely to fail first.
Why did my throttle body light go off?
I figured it may go off, like it was a gas cap issue. Took it to the nissan dealer paid $121.00 and they said they couldnt find anything wrong. But the code was coming up P2101 throttle body actuator. They reset the computer and cut the light off.
How does the electronically control throttle body work?
This is a video on how the electronically control throttle body works. Also, some of the common parts that fail and how they fail. A DC motor drives a toothed plastic gear, that in turn drives the throttle plate gear. A potentiometer sits on the throttle gear and returns signals to the computer through the sweeps on TB cover.