Question about Chevrolet Impala

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2009 chevy impala check engine light, engine power reduced and sometimes if I continue down the road after that message, the car shuts down and says staring disabled. Ive read throttle position sensor and Ive heard wheel speed sensor....someone help please

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  • Chevrolet Master
  • 5,401 Answers

Only way to be sure what is wrong is to have the computer scanned with a code reader or scanner to retrieve the trouble codes. They will direct you or a technician to the proper sensor, control, or circuit that is malfunctioning. Many national parts stores provide code reading for free.

Posted on Oct 25, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1810 Answers

SOURCE: i am getting a reduced engine power message and

check your oil is it time for a change or just a refill

Posted on Jan 05, 2010

motor1258
  • 6674 Answers

SOURCE: 2006 Chevy Impala reduced engine power

best bet is to stop in at a Pep Boys, Autozone, or similar big autoparts seller, and ask for free trouble code scan, which should pinpoint area causing problem. If not obvious by codes, what is necessary to repair the problem code, get back to us with those codes and we will be glad to assist you further. Better this way, takes away the guess work, and saves you money, as well as getting it right the first time.

Posted on Dec 12, 2009

  • 714 Answers

SOURCE: The "engine power is reduced" light comes on

po455 is Probable Cause[s]

1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.

Posted on Feb 27, 2010

  • 12744 Answers

SOURCE: 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

Posted on May 11, 2010

  • 2 Answers

SOURCE: 2009 chevy silverado traction control


DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance

Your vehicle has an electronic throttle body unit so it uses voltage signals to control throttle blade in the throttle body. There are a few different issues that can cause this problem.

First off there is a update for the PCM to address those codes, but you will have to take it to the dealer for that.

Second there is issues with the actuator on the throttle body binding up and causing the codes.

Third there is a yellow wire coming off the throttle body connector that breaks inside internally and cannot be seen to the naked eye. The best way to test that is to grab the wire about 5 inches from the connector and tug if it feels spongy or breaks, that

Posted on Jan 01, 2011

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2011 Chevy impala engine power reduced


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2006 chevy impala traction control


Reduced power is a problem with electronic throttle contol . drive by wire . Do you know what this is ? Taking the vehicle an having it hooked up to diagnostic tool an checking for DTC'S - diagnostic trouble codes is always a first step when trying to find the root cause of any trouble light ! And not auto zone , pep boys , or advance auto parts . Thier diagnostic tool will not check codes in all system control modules .

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I have a 2010 Chevy impala. Service Traction control, Engine Power reduced and Service Stabiltrak message comes on. Also check engine light comes on and a triangle with a car in the middle and slippery...


had the same trouble with my '10 impala it turned out to be defective electronic accelerator pedal it is actually a recall for this vehicle and should be a free repair at your dealer.

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1 Answer

My 2009 chevy impala service traction light came on and then it said engine speed reduced


Have the codes checked. But you probably lost one of the wheel sensors. This will pop the light. When the ECM detects a wheel not move as fast as the others, it sets the light.

Aug 11, 2011 | 2006 Chevrolet Impala

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What does reduced power mean on a 2005 chevy colorado


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Engine power is reduced keeps showing on the dash screen, as does service traction control. the car is running rough and has no power when this occurs.


how do you fix the "reduced engine power" light on the dash bard of a 07 Chevy Impala LTZ and "Service Traction Control"?

Feb 12, 2010 | 2006 Chevrolet Impala

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I got code p2176 I changed out the tps still got same problem did not have this problem with other engine just changed engine out now cant seem to get this code off causing the car to rough idle and low...


P2176=Throttle Actuator Control System - Idle Position Not Learned
Did you use all you old sensors,or is some of them from the new engine,I would swap out the IAC sensor or check for wires not hooked up.
If it can't relearn to idle the Idle air control might be different then your old one,but its not registering with the computer

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Service Throttle Control


It sounds like these things are all related. When the a computer sees a problem in the Electronic throttle system, it will dissable traction control, and give the reduced engine power alert because the powertrain computer does not know the value of throttle postion.
Codes will need to be scanned in the computersto begin diagnosis.
TechJK

Jan 30, 2009 | 2007 Chevrolet Impala LS Sedan New Cars

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