2003 Chevrolet TrailBlazer Logo
David Barba
David Barba Posted on Jul 30, 2008
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2003 Chevy Trail blazer says service engin soon?

I have a lighted Message "service engin soon" all my flids are ok, 2003 Chevy trailblazer. Has 112,000 miles +

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  • 2 more comments 
  • Anonymous Mar 12, 2014

    service engine soon light came on, code read po147, reset light and service engine light stayed off, is it ok

  • Anonymous Mar 23, 2014

    2003 trailblazer running well now all sudden service engine soon light on and flashes upon acceleration

  • Anonymous Mar 24, 2014

    Service engine soon light on machine said because small gas leak

  • Anonymous Mar 29, 2014

    service brakes soon diplaylight

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Anonymous

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  • Posted on Aug 25, 2008
Anonymous
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You have a trouble code stored. This means the pcm has detected a problem somewhere

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Have a 2003 chevy trail blazer loud buzzing noise coming grom back of engine. Sound like under the air filter or intake. Only buzzes whn stopped idling. Noise stops whn you rev the engine
remove the air filter and carefully run the engine to locate the source. check the hoses in particular.
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Jan 06, 2015 • 2003 Chevrolet TrailBlazer
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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.
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Co237 and co267 for 2003 chevy trail blazer
C0237 is related to the rear speed sensor and C0267 is related to the pump motor in the ABS system.
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Feb 15, 2014 • 2003 Chevrolet TrailBlazer
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My 2004 Trail Blazer is sputtering never had this problem before
Those check lights have been on all vehicles for
31 years now

Did you not check for codes?

Diagnose & resolve code related issues first
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Aug 29, 2012 • 2004 Chevrolet TrailBlazer
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I have an 04 chevy trail blazer and the service engine soon light came on and the codes came up as p205 and p305. I know the 305 is the 5th cylinder but have no clue what the 205 is
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Apr 26, 2011 • 2004 Chevrolet TrailBlazer
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2003 Chevy Trail Blazer Top brake light works along with turn signals, but no brake lights
It is the turn signal switch. You must remove the air bag and pull the steering wheel. Special tools are required and the airbag can cause serious injury if mishandled.
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Oct 01, 2010 • 2003 Chevrolet TrailBlazer
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Water pump change
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Mar 12, 2010 • 2003 Chevrolet TrailBlazer
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2003 Trail Blazer Tachometer .... I passed
The trailblazer / envoy vehicles have instrumentation problems. A sweep test with a scan tool will likely reveal a problem with the tachometer in your instrument cluster. It can be repaired by any number of dedicated repair facilities or the entire cluster can be replaced. I heard that there is a recall of these, but do not know for certain. It might be worth a call to a chevy dealer to see if it is.
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Jan 14, 2010 • 2003 Chevrolet TrailBlazer
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Chevy Trailblazer Engine very loud when starting
sounds like it could be your intake manifold gasket

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Apr 29, 2009 • 2003 Chevrolet TrailBlazer
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I changed the fuel filter
ok have you had the vehicle scanned?
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Jan 06, 2009 • 2003 Chevrolet TrailBlazer
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Have a 2003 chevy trail blazer loud buzzing noise coming grom back of engine. Sound like under the air filter or intake. Only buzzes whn stopped idling. Noise stops whn you rev the engine

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