Throttle body problems
Throttle body: Device that regulates the air intake into the engine. It is mainly controlled by the accelerator.
Read more
Related problems:
See owner's manual
Top problems
Several issues
Chevrolet Impala 2013 Lt 180000 miles
First started with sluggish acceleration. And a dead battery. Fixed the battery and alternator issue. Car still sluggish also jerking when I’d accelerate. I’d let off the gas and press again and it stopped. Until i had to stop and start again. Ran down all leads from everywhere. Throttle body, changed, battery current sensor changed. Ultimately I’ve changed almost everything on my car. Still had the sluggish and jerking. Someone suggested my fuel pressure regulator or injector. Changed both of them. Now my car misfires and idles so badly it barely runs. Barely starts. Has gas dumping into the… Read complete
1 reply
1
JS
Based on what you’ve described, it sounds like your Impala is currently running in limp mode, which is the car’s way of protecting itself when the engine senses a serious problem. The symptoms you’re seeing — jerking, hesitation, poor acceleration, and difficulty idling — are classic signs. Right now, the most likely cause is an injector that is stuck open or not installed correctly, which is causing too much fuel to enter the engine. This over-fueling is flooding the spark plugs, making the engine misfire, smoke, and even smell of gasoline, and it can also affect the oil. Once this fuel issue is resolved, the limp mode should clear and the engine should run normally again. The radio not working is probably just a blown fuse or ground issue from the earlier battery and alternator work and is unrelated to the engine problem.
Vote helpful
CommentEngine power reduxed, Stabilitrak
Chevrolet Impala 2015 LT 209565 miles
My car started popping up Stabilitrak on the dash then after that engine power reduced and the car struggles to drive, shuts off. Could it be map air sensor, throttle body, O2 sensor... I've had few people tell me different things.
Problems with a Impala? Share them
