2009 Chevrolet Impala won’t seem to have any pick up says reduced engine power on dash.
Have you noticed if the check engine light is on as well the ‘reduced engine power’ message on the driver information center?
Yes it is on all the time but was on before I have this problem.
Well you may have more than one problem, but we’ll start with the hesitation and reduced power message issue first. Usually on your style of vehicle there are only two causes for that message to appear on the dash. Either you have a throttle body problem, or a problem with the accelerator pedal which also has a position sensor built into it.
How do I fix this?
The first thing really that needs to be done is to have the car scanned for trouble codes. This will help explain why the check engine light is coming on, as well as why the reduced power message appears. You will either have codes stored for the electronic throttle body assembly, or the accelerator pedal position sensor which is part of the pedal assembly. since you mention the light was on before this problem, you may as well have other codes stored that didn’t affect the driving of the car. These could be anything from emission control problems or even just a glitch in the system. Diagnosis needs a starting place, and in your case it needs to be done by retrieving the codes from the computer.
Can I have someplace do that for free?
Well there are some auto store chains that will scan a car for free, but sometimes they don’t have the most up to date equipment or knowledge. At least you would know the actual codes in the system, which would be a starting point. You may also want to visit a local GM dealer, as it’s possible some of the work your car needs may be under the current powertrain warranty since you have a 2009 model. Assuming you’re not over 100,000 miles yet. I can tell you this for sure, a throttle body would be a covered repair if that’s what you need done, but if you need an accelerator pedal that is not covered unless you are still under the 3 year/36,000 factory bumper warranty.
Oh wow thanks for that info! That would be great to get it fixed under waranty.
You’re welcome. It’s always best to check with your dealer for warranty status, mileage on the car, what is and isn’t covered.
I’ll get it checked thanks again.
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16 Comments on "2009 Chevy Impala Engine Light And Reduced Power"
I received a letter from Chevrolet Corp regarding the problem with the check engine and dash reading of engine power reduced speed message. Therefore I have taken my car in for service. I was told it was the pedal sensor which was covered, but that they also found that my gas senor needed replacing and it wasn’t covered and if I didn’t get it repaired the check engine light would come back on. Wouldn’t the 2 sensors both be a part of the throttle body?
I had the. Same problem with reduced speed message it is not the battery or alternator it was the huminec balancer
Laureen, what was the mileage expiration for that warranty?
You ask if the 2 sensors are part of the pedal? That depends on what the codes where.
If by gas sensor, you are referring to the fuel level sensor, then no, these are not related at all.
What year is your car
My car is acting up it has no pick up I got a message on my dash saying engine power reduced and it wount hardly get up and go I put my foot on the gas and acts like it doesn’t wanna do nothing and its jumping shifting weird…I had OnStar do a diagnostic check and it came back with this code: p0651 can any one please tell me what is wrong with my car from this code I really need to find out please help…
My check engine light is not on and has not been on the last message my car displayed was low coolant and low wiper fluid. I topped off the coolant and that went away, I drove maybe 7 miles across town to get into 2015 Chevy Camaro and at 3am I went to go to work in my 08 impala LTZ and it wouldn’t even start. Which is also when I first noticed the engine power reduced indicator. I assumed it was my battery cables due to the positive cable looking like it had been burned, so replaced them with no relief in the issue. I can’t start the car, what is the next option?
I have a 2008 chevy impala, this morning on my dashboard it said reduced power engine, I was driving about 30 mph and dropped to 20 mph and after that my check engine light turned on. please help?
You are going to have to have the computer scanned for codes. You could have a problem in the throttle body or the gas pedal sensor.
The code for the accelerator pedal came on a couple of days ago. The check engine light has gone off I don’t know if I should be worried or not
The problem will only get worse and eventually the car will not accelerate. Be sure about the code, because there are several related to the throttle position sensor (gas pedal) and several related to the throttle body on the engine.
The dealership said since I had my throttle body replaced, I still need to bring it to the dealership to be reprogrammed. The engine power is still reducing after being replaced. So will that help?
Ok I have the same problem as above as far as what the car is doing. My warranty ended just 2 mths ago. My chevy dealer is telling me its the throttle position sensor assembly. Now in reading the above I’m not sure which one it is.
We need to know what code is stored in the computer to tell you whether the problem is the throttle body or the accelerator pedal.
The gas pedal was the problem on my 2008 Chevy Impala. I replaced it with no problem. Just 3 bolts and one plug to change it out. Thanks for the help. Your mechanic was a lot of help.