Question about 2001 Chevrolet Blazer

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2001 Chevy Blazer has check engine light on and hard to start.

The Blazer takes about 5-10 trys to get started but runs good after it starts. It seems to start better in the cold weather. The code is the evap. emissions. I have had this looked at by my local garage but it always comes back on.

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  • tat2drummer Jan 24, 2009

    I replaced both parts you said and it is still not starting and now it does not want to idle when it is warm.

  • Anonymous Mar 28, 2014

    runs in a constant surge hard to start at times will not start at times at times will good for approx 3-5 minutes then starts the surge

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  • 334 Answers

Try IAC the idle air control because its what compensates a rich or lean mixture. There is another sensor called ECT sensor which reads off the tempature of the coolant

Posted on Jan 05, 2009

  • Greg Wilkins
    Greg Wilkins Jan 25, 2009

    Now if you can see if the code has changed. You could try cleaning the egr valve because it can be cleaned instead of replaced. let me know i am trying to keep this as cheaply done as i know. I'm sorry it hasn't been fixed yet.
    Greg


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2000 chevy blazer starting issues


swng,
1) Is the service engine soon light ever on when engine is running?
2) Per your description I would look at the ECT sending unit. It sends coolant temperature information the the Engine Control Module for proper fuel delivery for cold engine start. It may have lost its calibration.
Let me know.
Regards,

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