Question about 2004 Chevrolet TrailBlazer

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Reset 2003 trailblazer service engine light

Reset 2003 trailblazer service engine light

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  • Anonymous Mar 22, 2014

    reset alarm 2003 trailblazer

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Is this the check engine yellow light?

Posted on Sep 28, 2009

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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

2003 chevy trailblazer service engine soon light


If the service engine soon light is flashing, it means the computer has detected an engine misfire with the potential of catalytic convertor failure. Don't just tune it up. Bring it somewhere they can read the trouble code. Sometimes it will designate which cylinder is having the problem.

Sep 24, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

2003 trailblazer service engine soon light .code po301 number 1 cylinder misfire,code po014 cam phase eeror


you may need to replace the cam and crank sensor at the same time.some vehicles use these two together to communicate with the computer.

Mar 19, 2013 | 2003 Chevrolet TrailBlazer

1 Answer

Service engine light comes on reset it it and takes a couple o days to come back on .truck doesnt overheat but comes up 128 error is it the thermostat or engine coolant sensor


It is possible that your oxygen sensor needs to be replaced.
have it checked out, thats the most common reason the engine light comes on.
P0128 error means thermostat stuck open, replace it.
then reset computer with scanner, lights and codes should go away.

Aug 19, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

I need ot reset my service engine soon light


Before you reset it you need to find out what set it. If you don't have a code scanner take it to Autozone, they will do it for free and give you printout of the fault codes.

Dec 12, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

What has to be done to turn off sevice engine soon light ? THIS IS ON A 2003 CHEVY TRAILBLAZER.


You can buy a hand scan tool and turn it off. If you can't get a scan tool, you can remove one of the battery cables and wait for 10 mins before hooking it back up. But keep in mind that you need to reset the radio and clock

Jul 25, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

03 chevy trailblazer reset engine light


the check engine? you need to have it scanned and the codes cleared at an autoshop. it will just pop back on if the problem isnt taken care of.

Oct 10, 2008 | 2003 Chevrolet Trailblazer Ext

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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