Question about 2004 Chevrolet Tahoe

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04 chevy tahoe

Okay, hope ur siting down for this,, okay, i have a engine light on and at the bottom i have a reduced engine power sign up, so when this reduced engine power is up it takes away the gas petal but the times i do start it and sometimes its not on and i do have a petal so i can drive it, now this is the kinda strang part. if i pull back on the high beam lever (windshield washer,wipers,ect,ect) it kills the truck.. okay if i leave that alone and the reduced engine power light or banner isnt on and i turn the ac on it instintly goes to the reduce engine power banner again and the fan works but no cold air.. please help me on this , driving me crazy

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  • Anonymous Mar 18, 2014

    after driving 10 miles reduced engine power and oil light come on engine starts to ping.



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The check engine light you are getting sounds like and electrical problem, have the battery and the alternator tested, and have autozone or the like pull the codes off for you and see if you can figure out what they are....

Posted on Jul 25, 2008

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Tested battery and found battery low: That's it.619-646-0507 value auto repair.

Posted on Sep 24, 2013


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1 Answer

My chevy 2005 tahoe has a reduced engine power light come on and it drops the speed down to 15 miles per hour what could be the cause of that

there can be several resons for it. u need to check following:
1. check engine light is "ON" or not
2. there is change in engine sound or its louder?
3. are there jerks when u r driving?

i need to quickly see a mechanic immediately to avoid damage to engine

Dec 03, 2017 | Cars & Trucks

1 Answer

What could it be when 2006 Chevy Malibu says engine reduced n shuts down but after few minutes will start back up

Engine Reduced Power massage ! Has to do with the electronic throttle control ! 04 Silverado REDUCED ENGINE POWER Case Study Part 1

Refer to Throttle Actuator Control (TAC) System Description for the 2.2L engine, Throttle Actuator Control (TAC) System Description for the 3.5L engine or Throttle Actuator Control (TAC) System Description for the 3.9L engine
Your best bet is to take it to a ASE certified repair shop !

Apr 25, 2016 | Cars & Trucks

1 Answer

Reduced engine power on a 2003 chevy taho light came on and it pulls slow what to do

Reduced power is a mode the engine goes into when there is something wrong with the cooling or the firing. If the engine gets to hot it uses the pistons to air cool. This of course is not a for sure but where I would start.

Mar 16, 2014 | Chevrolet Avalanche Cars & Trucks

1 Answer

My 2003 chevy tahoe will not accelerate pass 30mph what could be the problem?

Your problem could be in the Transmission, but most likely it is caused by a sensor / electric part called an Accellerator-Pedal-Position-Sensor (APP-Sensor. If it is the APP Sensor, then you should be getting a signal in the information center saying "reduced power" or a Check-Engine Light.

Aug 29, 2012 | 2003 Chevrolet Tahoe

1 Answer

My wife has a 2001 chevy taho and I just replaced the throttle body , we keep gettting a reduce engine power light and a service engine light. I changed it out an then the problem came back after I

I would like to know WHY you had to change the throttle body? who gave you the idea that reduce engine power has to do with the TBody and one last thing what is the trouble code now? Reply.

Oct 19, 2011 | Cars & Trucks

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!


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

2 Answers

2004 Chevy Tahoe - Reduced engine power message

have autzone check for any stored trouble codes, replace the fuel cap, make sure you have plenty of gas

Jul 20, 2008 | 2004 Chevrolet Tahoe

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