Question about 2003 Chevrolet Silverado 3500

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Reduced engine power come with check engine ligth

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Check and clean the connections on your battery first. If that doesn't work, some have said it turned out to be a problem w/ the throttle connector on their rides. It happened to me ( I had the reduced power light on my 2001 tahoe and was restricted to 15-20 mph max) and I started w/ the battery. Worked like a champ for me!

Posted on Aug 30, 2010

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baccardo
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SOURCE: reduce power and check engine lights on

reduced power usally points toward a gas pedal to throttle correlation meaning the drive by wire system is where the problem is

Posted on Apr 18, 2009

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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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Dec 28, 2009 - 20 posts - ‎12 authors I have replaced the throttle body, had the wires re-connected and .... The gauges all went wild and reduced engine power displayed on the dash. I looked it .... The truck just went to idle for no reason and it keeps happening. 2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND ...
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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

1 Answer

Emission light came on and so did reduce power light. It happens when I quickly excellerate from 10 mph but will reset if turned off


2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND REDUCED ENGINE POWER ...

www.topix.com > California > San Diego County > Oceanside
Dec 23, 2011 - 2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND REDUCEDENGINE POWER ... The reduced engine power ligth comes on and I lose power. ...Next, the fan clutch failed -- which is when he did an "above and beyond" .... yesterday I have not replaced anything bc they have told me nothing is wrong.

Oct 15, 2015 | 2002 Chevrolet TrailBlazer

1 Answer

I have a 2003 Cadillac CTS. It continues to go into reduced power mode. How do I correct that.


Are you getting a ENGINE POWER REDUCED message ? Is the check engine light on ?
Reduced Engine Power Mode
Throttle Actuator Control (TAC) System
electronic throttle control .
When the ECM detects a condition with the TAC system the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Limited torque


?€¢
Limited range of throttle movement


?€¢
Engine OFF


Your going to need to take this to a ASE certified repair shop or the dealer , you probably don't have the diagnostic tools to trouble shoot this problem.
https://youtu.be/oPPLAHSSluw

Aug 16, 2015 | Cadillac Cars & Trucks

1 Answer

I have a saturn vue and the ligth reduced power come on and it don't get more than 10 mph after that we check with the computer all ready and we sill don't know whats goin on?


The computer gave you no codes at all? It would be odd for the reduced power light to come on and not have some sort of error tripped. Are you connecting an obd reader or accessing diagnostics through the dashboard? If there are any codes at all post them and someone will likely be able to tell you what is going on.

Jun 03, 2015 | 2002 Saturn VUE

1 Answer

Engine power reduced chevy impala


engine power reduced means that the CPU has placed the ECM in a safe operating mode and reduced power to lessen the risk of serious engine / transmission damage. Stop and check oil level and coolant level at the radiator cap. have the fault codes read urgently so as to prevent damage to the units

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1 Answer

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

May 03, 2017 | Cars & Trucks

1 Answer

How can i fix the EPC warning ligths on my 2005 audi a4 quattro 3.0


The throttle control can set a EPC condition this is where you get 50% power it is reduced the advantage is to protect the catalytic convertor. You will have 2 setting one in the engine compartment and one on the driver floorbardcansmo_55.gif

Aug 24, 2011 | 2002 Audi A4

1 Answer

Hyunday Santa Fe 2008 3.3l Sudden loss of power while driving on the highway. Engine does not cut out but idles apparently normally. No response from engine when stepping on accelerator pedal. ESC and...


well, if check engine ligth on have the codes pull to find out the problem it may be mapp ,air ,sensor bad ..if engine ligth is on its picking up a a code..

Dec 20, 2010 | Hyundai Santa Fe Cars & Trucks

1 Answer

I have a 1986 silver spirit which looses power .it will tick over and run for about one minute .when you accelerate it looses all power .is this a fuel starvation problem.if i turn the car off then start...


check fuel pressure, ignition source , timing,plugs ,dist& rotor ,coil ,sensors , does check engine ligth on or comes on . just turn key on no start see if check engine ligth comes on

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