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2023- The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
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Engine light evap code 044

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Old Dec 9, 2019 | 9:53 AM
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Default Engine light evap code 044

Changed the evap purge control. Still have error. Is there a vacuum line that usually leaks? This might be a trial and error situation. Any help is appreciated.
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Old Dec 9, 2019 | 1:34 PM
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what model year and engine. post the entire code p0044? p1044?
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Old Dec 9, 2019 | 3:42 PM
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2005 6 cylinder 4.2 liter. I believe the code was 0044..I can check tomorrow.


QUOTE=tech2;439531]what model year and engine. post the entire code p0044? p1044?[/QUOTE]

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Old Dec 10, 2019 | 10:23 AM
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The engine code said there was a small evap leak. Maybe there is a cracked line.
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Old Dec 10, 2019 | 1:40 PM
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P0440 MAYBE P0044 ISN'T A CODE
if you have a p0440...make sure the cannister vent valve can close. a good scan tool can cycle it open and closed. when cycled you should hear it click.
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