Question about 2002 Chevrolet TrailBlazer

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

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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.

Posted on Mar 23, 2013

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Posted on Jan 02, 2017

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motor1258
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SOURCE: P0128 Code for a 2004 trailblazer with service engine soon light

Replacing it is the only fix. Sounds like it may be sticking open slightly.

Posted on May 27, 2009

autodr
  • 260 Answers

SOURCE: 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

Posted on Nov 20, 2008

  • 7353 Answers

SOURCE: po452 trouble code changed sensor engine light

you may have to drive it several days for the light to go off, or have the codes cleared. personally I would just drive it. if the computer tests it, and it passes the test, it will go off on its own.

Posted on Sep 21, 2009

emissionwiz
  • 85160 Answers

SOURCE: reset 2003 trailblazer service engine light

is this the check engine yellow light?

Posted on Sep 28, 2009

  • 104 Answers

SOURCE: chevy trailblazer check engine light

P0128 is coolant operating temperature operating too low. This can be contributed to the Thermostat stuck open or faulty electronic radiator fan clutch. This is common, I had the same issue and replaced the thermostat and fan clutch and had the clutch re-programmed (required) at the dealer. As for the P0410, check the air pump fuse, if blown it will set this code on. Also check the air pump hoses for water and cracks. Hopefully this helps!!

Posted on Apr 20, 2010

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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.

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Hello John Hightower,

Your light SES would be coming on because the associated
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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...


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.

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1 Answer

How do I turn the service engine soon light off


you have to unhook the battery for about 20-30 minutes, and this will reset your check engine light. If it comes back, you have a problem that needs attention; it may be a sensor gone bad, or something along those lines, but you will have to have the code scanned to find out what's up with it in order to fix the actual problem.

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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"

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hi, this is just a reset issue. sometimes the CPU can become confused. the original warning that informed you about your gas cap is still in the cpu's memory. you will have to reset the cpu and, this will clear the warning. After the reset, it will stay off. chevy cpu's tend to do this from time to time.

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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 ,
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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

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