Question about 2004 Chevrolet Tahoe

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I have a 2004 Tahoe, the engine light came on and then it said Reduced Engine Pressure. When I pushed on the gas nothing happened.

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  • transidentit May 11, 2010

    I have exactly the same problem anyone knows how to turn it off



    JOJO67

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I have the same exact problem - the "Reduced Engine Power" kicked in today, but for the past few days it has sounded like the battery is struggling to start the car. Are these related? Also, Millersech, what became of your problem?

Posted on Jul 06, 2009

  • Robbie Parr
    Robbie Parr Jul 30, 2012

    hi i nhave same problem did u find a solution , im at my witts end need help

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It was reduced engine power. I'd bet you have some "TAC" codes, Unless you are very mechnicaly inclined then you need to end up at a shop. They have been rewiring the tac modual and replacing the trottle bodies to fix this problem.

Posted on Jun 19, 2009

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1 Answer

I push the gas pedal on my 2004 CTS and it does not go what is the problem


Your caddy has Electronic throttle control ,drive by wire ! Do you know what this is ? You gas pedal ,if you look at it has wires connected to it .These wires hook up to the engine computer ,the engine computer has more wires that hook up to a dc electric motor under the hood on the throttle body which open an close the throttle plate ,which makes the vehicle go faster or slow down !

Are there any messages on your dash REDUCED POWER ? Check engine light lit ?

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Reduced engine power


No, you need to have it scanned at the local autoparts store (for free) or to your dealer for repairs.

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

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Have a 2004 tahoe z71. engine wont turn over. igition lights come one but when turn key to acctualy start engine nothing happens tryed cleaning and tighting battery cables but didnt help.. checked fuzes...


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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,
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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

Apr 05, 2017 | Chevrolet Tahoe Cars & Trucks

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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

1 Answer

Reduced engine power


hi there my name is don i will try to help you on this
when your reduced engine light comes on that means there is a active fault code in one of the sensors that is cusing this
you will have to get it scanned or retreive the codes from the dash

once you shut it off and turn it back on it temporarly resets until the diagnostics go through it again and it will reduce the power to the engine
it could be something simple like a gas cap or tire pressure but you will have to get it scanned to find out
thanks
don

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

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04 chevy tahoe


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....

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