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What's the matter when a reduced engine power message comes on......2008 Impala"

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Could be several things. General Motors PCM is programmed to limit engine power and acceleration, if there is a problem that could damage the engine . could be coolant failure , spark ignition problems etc. You will have to take it in and have it put on a reader to download the information from the pcm that was recorded during the problem.

Posted on Dec 10, 2014

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I have an 2008 chevy impala as that sometimes give me the message "engine power reduced" "service stabilitrak" WHAT is the problem?


When there is an error with the stability ac system the computer can reduce engine power as a safety precaution. You need to have the stored codes read.

Aug 23, 2016 | Cars & Trucks

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2008 Impala , my "Servive battery system charging" came on, then I started to feel my steering wheel lock up.I let the car sit and I turn it back on and I cannot move my steering wheel idk what to do


if you have an electric power steering system, you may find that the battery voltage has fallen too low to make it work . this is from the message that service battery charge system has come on, indicating that the alternator is no longer charging--broken belt , failing battery , faulty alternator , faulty regulator or problem ECM where the regulator can be

Aug 13, 2016 | Cars & Trucks

1 Answer

Reduce power light on has no throttle and keeps giving throttle accuator cdes


2003 Silverado 2500HD REDUCED ENGINE POWER - Discussion on Topix

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Reduced Engine Power Message Displayed on GM Vehicles

www.underhoodservice.com/tech-tip-reduced-engine-power-message-dis...
Dec 10, 2012 - Tech Tip: Reduced Engine Power Message Displayed on GM Vehicles ... Model year 2008-'10 vehicles must have the engine control module (ECM) reprogrammed ... Do not drop the electronic throttle control components.

Oct 28, 2015 | Cars & Trucks

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Tow messages appear on the dash board: Service traction control and Engine power reduced. When this happen I can feel the shift in the transmission when I'm driving. After a while these messages d


Pretty much tells you the system with the fault

Traction Control is embedded into the abs braking
system, so diagnose that using the codes you have,
same as any other obd codes you get

The Reduced Power could be another problem & it
cuts off fuel injectors to save the exhaust converter
from overheating & being ruined

Mar 10, 2013 | 2009 Chevrolet Impala

2 Answers

I have a 2010 Chevy impala. Reduced engine power and check engine light also comes on but won't stay on. Codes are P2138 P2122 P0455


Hi Rosalee_IM,
The codes your vehicle is storing are for low voltage from your accelerator pedal position sensor and a gross evaporative emission leak. The code P2122 and P2138 are directing you to test the accelerator pedal position circuit and/ or sensor. This is the cause of the reduced power concern you are feeling.The P0455 is telling you there is a large leak in the evaporative emission system. The most common cause for this code is a loose or incorrectly installed gas cap.I hope this helps clarify the concerns you are experiencing. If you'd like more information on how to trouble shoot the problems,drop me a line. Please include the model Impala you have,(LS,LT or LTZ) and the engine size. I will do my best to get back to you as soon as possible.Thanks, Chuck

May 03, 2012 | 2010 Chevrolet Impala

1 Answer

I have a 2008 chevrolet impala, my engine light comes on and a message states engine power is reduced. i took it to autozone and they gave a code of p2138 can someone tell me what this is


DTC P2138 - TPS/Pedal Position Sensor/Switch D/E Voltage Correlation

Check wires and harnesses connections first, then its possible that the sensor go to bad.

Keep us updated.

Jan 20, 2011 | Chevrolet Impala Cars & Trucks

1 Answer

Engine light comes on and says engine power reduced


I have seen this several times, the repair was to replace the gas pedal sensor. you will have to take it to a shop to be scanned to be sure. thanks motor 62500.

Dec 21, 2010 | 2008 Chevrolet Impala

1 Answer

I have a chevrolet impala 2008 some time gave this message "Engine speed rudce " it come with the traction control . What is that means ?


hi,
this simply means the wheels are slipping and the computer is applying the brakes(trac) and reducing the accelerator (eng speed reduced) to try and bring the car back into control. It basically means its time for new tires or rotate the front ones to the back so the wheels slip less...
jm

Nov 06, 2010 | 2008 Chevrolet Impala

1 Answer

I have a 2008 chevy impala. The car suddenly


ur vehicle is in limp mode[ a safe mode ] which will get u home trying not to cause any damage to engine --theirs a few reasons the vehicle will do this-low oil pressure-transmission problem-have vehicle scanned most auto stores such as auto zone / advanced auto [check ur local area]do this service for free the code gives u a start point towards resolving ur problem

May 11, 2010 | 2008 Chevrolet Impala

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