Question about 2004 Chevrolet TrailBlazer

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2004 chevy trailblazer-Reduce engine power light, service engine soon light came on together, car lost all power, couldn't even turn the steering wheel, engine stalled. shut off key and started again and it seemed fine but now the service engine won't turn off.

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You need to get the fault codes read to determine where the problem is that set the SES light. Autozone will scan your car at no charge. At some point you will need to get a mechanic involved to further diagnose the codes.

Posted on Sep 25, 2010

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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

How do i reset the service engine soon light on my 2004 chevy trailblazer


You will need a code reader to clear the service engine soon light. If you have not repaired the problem the light will come back on.

Mar 19, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

2004 chevy trailblazer electrical problems


Get rid of it, Let somebody allse deal with it.

Oct 23, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

I have a 2003 Chevy trailblazer,when I accelarate my service engine soon light came then the reduce engine light comes on; suddenly my truck slows down. Shut the engine down, start it back, the lights go...


Get the engine codes pulled. Once you have them it will help track down the issue. Not really much you can do otherwise unless you want to throw money at it.

Jan 17, 2011 | Chevrolet TrailBlazer EXT Cars & Trucks

1 Answer

I was in my sister's 2004 Chevy Trailblazer and it was acting up. First the service engine soon light has been on. I was driving and the engine started revving up and down then it stopped accelerating...


The VVT (variable Valve Timing) solenoid may be dirty and will need to be cleaned or replaced. Poor maintenance (lack of oil change) will cause carbon and sludge to accumulate on the VVT screen causing the VVT to stick which will cause the issues your experiencing.
You may get lucky by trying to clean the VVT by adding a can of Seafoam to your engine oil and running it in there for the next 250 miles and then giving the Trailblazer oil and filter service with the recommended 5W-30 weight oil, anything heavier may cause the VVT not to function correctly as it is now.
Start with the simple and add Seafoam (Auto Zone, Part Source) carries the product. Service the engine oil after 250 miles, and at worst you may have to replace the VVT solenoid which is simple to do. Keep me posted if you have to replace the VVT.
Thank you for using fixya and be safe

May 13, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

2004 Chevy Trailblazer - Multiple Issues


go to an autozone let them download computer...they can also turn off check engine light...then restart engine and see if sameting happens...sound like vehicle is in "limp mode"

Jul 21, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

2004 Chevy Trailblazer engine stalls after coolant temp senor R&R


clean your throttle body....same thing happened to me and my truck runs great now.

Mar 19, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

Chevy Trailblazer 2003 ran the battery down now wont idle


try changing the air filter ,i had a problem ,at ilde in drive my trailblazer would stall, changed the air filter now it's not stalling and got my power back ,there is a secondary air pump that i have to change ,
not sure were it is ? still not running perfect but it's running better .and my service light is on too.
i got it put on scope ,it's the pump .
not sure if this helps ,but i'm start to run in to problems too,i have a 2004 trailblazer.
i like to do fix things myself ,i hope i can.it's the cost if you know what i mean.

Dec 17, 2008 | 2004 Chevrolet TrailBlazer

3 Answers

2004 chevy trailblazer 73,000 miles


the first place to start is the flashing engine lite. that means cylinders are not firing at all or improperly and driving it like that for even short period could cause heavier damage. particularly valves and cat converter(s) the computer really needs to be scanned for codes in order to proceed. did the oil lite come on before or after engine quit. after engine quit would be normal cause it stalled. its possible that it needs spark plugs and/or coils. or more

Nov 20, 2008 | 2003 Chevrolet TrailBlazer

1 Answer

2003 Chevy Trail blazer says service engin soon?


you have a trouble code stored. This means the pcm has detected a problem somewhere

Jul 30, 2008 | 2003 Chevrolet TrailBlazer

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