TrailBlazer 2002-2009
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
Platform: GMT 305, 360, & 370.

Air Intake Engine Light Woes

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Old May 26, 2014 | 9:06 AM
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frederick2005's Avatar
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Unhappy Air Intake Engine Light Woes

2005 TrailBlazer LS 100K miles w/K&N air filter, Lucas fuel injector cleaner 1/mo. traces of burnt fuel on throttle body plate. Engine light comes on & off 2/mo. Diagnostics = air intake. Any Suggestions ?
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Old May 26, 2014 | 8:24 PM
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tech2's Avatar
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find out what codes are setting and post them here.


probably egr/pvc gases hit the cold throttle plate...time for a throttle body clean.

Last edited by tech2; May 26, 2014 at 8:26 PM.
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