Question about 2003 Chevrolet Tahoe

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Check engine light "reduced enging power" message?

2003 Tahoe 92000 miles no previous check engine lights in past. Last nite light came on and message on instrument panel read "reduced engine power". This morning the message is gone but check engine light is still on. Wasnt sure if the light is just a reminder to change timing belt or have some regular maintenance performed. any ideas?

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  • nizaka Apr 14, 2009

    I have the same problem.  I have not been able to find a solution.  The truck will run fine 400-500 miles and then it happens again.

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

Posted on Dec 24, 2008

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Reduce engine power that code is came from your trotttle body check for the faulty wiring and check also the power ground its located top left rear of the intake

Posted on Jan 19, 2015

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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.

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I just want to know what bulbs I need to replace all of the interior lights in the dash board of my 2003 Chevy Tahoe, 2WD 4.8l with tow package. O'reily's says PC195 for all, but is that for every dash...


G,man,can't help myself:400 miles!But u got internet and fedex hopefully.
General advice:dashboard bulbs are all equal in form may have different powers (can be colour coded),so ceck the bulbs first.
Dome and others places are different,ceck bulbs in place.
Internet orders (like ebay) may provide cheapper material (+more info,u must digg).
Doubt the dash replace will be best choice,tricky bussines,besides it will show different millage...
Cheers,hope u deal it,let the people know.

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Reduced engine power warning


there is a acuator that contolls the throttle they dont use a cable anymore. thats were i would look 1st

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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

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I get a reduce engine power message, the truck shuts down, but with enough power to get off the road. I shut it off for about 30 secs and then all power is back. The engine light remains on though. Some...


You'll probably need to have a mechanic read your computer, either the fuel pump relay is going bad or it could be a body ground problem in the computer.

Oct 19, 2010 | 2003 Chevrolet Tahoe

1 Answer

The check engine light keeps coming on in my 2004 Chevy Tahoe. At first when it came on, it would show a warning message that states Reduced Engine Speed and the Tahoe wouldn't have any power. Now, it's...


Most auto parts stores have Scanners that can read the actual Codes causing the check engine light- usually for FREE. Google the Codes to determine what needs fixed.

Do not continue to drive it, as it may cause permanent damage!

GL,
Td

Jul 23, 2010 | 2004 Chevrolet Tahoe

1 Answer

Reduced engine power


go to a parts store like autozone they should scan for free

Jan 04, 2010 | 2003 Chevrolet Tahoe

1 Answer

Why does my tahoe keep displaying reduced engine power? The drivetrain and traction control lights also came on.


There is a service bulletin for this concern.The number is 07-06-04-019A.It has to do with the body harness instrument panel connector.It is on the left hand kick panel area inside the instrument panel.You should have the codes checked.You will probably have a P 2138 code.This is for the accelerator pedal position sensor 1 and 2 correlation.Hope this helps.

Dec 19, 2009 | 2005 Chevrolet Tahoe

1 Answer

I have a 2003 Chevy Tahoe. No problem this


have the codes pulled this will get you in the right direction most autozones and the like do it for free

Dec 15, 2009 | 2004 Chevrolet Tahoe

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