What are the Signs of a Bad Throttle Body?
1. Stalling
Since the throttle body is dirty or faulty, the engine may stall.
2. Unstable Idle
The PCM bases its idle calculations on a predetermined amount of airflow through the throttle body. When that predetermined value isn’t met, the engine may fail to idle properly.
3. Rough Running
A faulty throttle body can result the condition of misfiring and rough running.
4. Lightning Alarm
5. Reduced power warning message on the dash