2012 Chevrolet Silverado 1500 Work Truck Crew Cab Pickup 4.8L V8 FFV 4-speed Automatic 5.8 ft. Bed Logo
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depope Posted on Nov 27, 2013
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Reduce power is displayed and check engine light is on

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Bill Boyd

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  • Chevrolet Master 53,816 Answers
  • Posted on Nov 28, 2013
Bill Boyd
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Joined: Jan 04, 2013
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Run fault codes to find out what sensor activated the engine light. Check oil level and water level at the radiator cap. Something has failed for the light to come on and put the engine in limp home mode.

5 Related Answers

Anonymous

  • 75 Answers
  • Posted on Dec 22, 2008

SOURCE: reduced power light on, 2000 Isuzu Rodeo, can't go anywhere

all electrical power must come from an alternator an a good batterie to store it please ck your alternator or have it ck by an parts store clerk if the altrenator is bad (must develop 13 0r 14.5 volts output. anyting above that ,the alt is bad!) change it then ck your batterie an batterie connections terminals and all the 80 amp fuses on the fuses box nicolas

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John Jon

  • 1114 Answers
  • Posted on Dec 24, 2008

SOURCE: check engine light "reduced enging power" message?

hook it up to OBD 2 scan retrieve fault code and go from that point!

Anonymous

  • 4088 Answers
  • Posted on Nov 25, 2009

SOURCE: 2006 Impala. Minor engine miss past week with

Take the car to Autozone or similar dealer for free scan of the engine computer. Many things can cause similar problems. Good luck!

Joseph Prosser

  • 780 Answers
  • Posted on May 28, 2010

SOURCE: reduced engine power on

The traction control uses the speed sensor in the transmission and the wheel speed sensors to determine wheel spin. If a wheel spins braking is applied to it so that the power can be transferred to the other wheels. At some point the ECU detected a gross disagreement between the sensors and so as a precaution has entered into a limp home mode. On some systems if the fault is in error it can be cleared by putting the car into drive and moving forward a meter, putting in reverse and going a back a meter and doing this three times. If one or other of the sensors are faulty this process will not allow the error to be cleared. You need to check or have checked the error codes and the speed sensors.

Anonymous

  • 1 Answer
  • Posted on Jan 11, 2011

SOURCE: Check engine light came on

reduced engine power message chevy cobalt 2006,cars sputtering, and when i presses on the gas the car wont move, i can put the pedal to the floor and the rpm's dont bulge

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0helpful
1answer

Have a 2011 Chevy Cruze engine light is on with a arrow pointing down

The light is displayed when a noticeable reduction in your vehicles performance may occur. The vehicle may be driven at a reduced speed when reduced engine power light is on but acceleration and speed may be reduced. The performance may be reduced until the next time you drive your vehicle. If the light stays on see your dealer as soon as possible for diagnosis and repair. If you run out of gas, the light may be lit since there is no power.
0helpful
1answer

Check engine light came on then reduce engine power

When this light comes on it means the computer control module has detected a fault in the system, it has reduced power to avoid any damage to the engine or transmission. You must now have the computer scanned for fault codes, this is done through the diagnostic connector under the dash see photo below.
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3helpful
2answers

Diesel. Reduce power lite turned on. Shut off engine and started back up - lite is off. Can it be driven?

Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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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

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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.
0helpful
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Reduced power light

I suggest you tell us what this mystery vehicle is so we can try to help. But from what you described i would start by checking fuel pressure at the fuel rail. And changing the fuel filter.
0helpful
1answer

Reduced engine power

Sorry another question i just cannot answer from afar without my head under the engine ,this could be anything so i can only suggest that you ask a local mechanic for some sort of diagnosis then if sounds expensive do not hesitate to post a reply to this answer and i might just might say yes or no your being had over .
0helpful
1answer

Readout is showing "reduced engine power"

CHECK AIR FILTER ,AND HOUSING FOR LEAKS ,ALSO HAVE SOMEONE HOOK A HANDHELD SCANNER AND READ SERVICE CODES .
COULD BE EGR PROBLEM , AIR LEAK ,VACUMN LEAK ,LEAKY INJECTOR , ETC
CLOGGED AIR FILTER
AIR FILTER NOT SEATED RIGHT IN HOUSING
0helpful
1answer

Reduced Engine Power light

With GM vehicles a Reduced Engine Power message has to do with the electronic throttle control .


GM Chevy Truck REDUCED ENGINE POWER Case Study Part 1
0helpful
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My 2006 Chevy Tahoe displayed the Reduced Engine power and stability control system turned off. Drove the vehicle home at reduced power never. Temp OK, Battery gage read lower than the normal +14V, Oil...

the post that everybody refuse to read or acknowledge is the first simple instruction
when ever there is a problem , have the fault codes read first
it is free at autozone and other parts shops
then knowing what the problem is you can have it fixed at an accredited service center for less money that fixing what is not faulty costs
0helpful
4answers

Cobalt

at first blush i would say alternator... have it tested.

Robert
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