p0171 system too lean - Page 2 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

General If it doesn't fit in any other forum

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  #11  
Old 01-05-2013, 01:17 PM
TrailBLT TrailBLT is offline
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2006 Chevy TrailBlazer LT
Silver Blue Metallic 4.2L I6 4X4
Join Date: Oct 2012
Location: Littleton,Co
Posts: 4
So regards to the p0171 code it was all a shorted cable on my vacuum connector it is located right under the driver side door i cut the burned wire re connected it and bang no more code, towards the hissing noise showing up on acceleration i was told it was the alternator going bad hope this helps







2006 Trailblazer lt 4.2
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  #12  
Old 01-06-2013, 02:49 AM
Goldtrailblazer Goldtrailblazer is offline
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2006 Chevy TrailBlazer LT
Sandstone Metallic 4.2L I6 4X4
Join Date: Jan 2013
Location: Calexico, california
Posts: 2
Can you show some pictures of the connector your are talking about please...
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  #13  
Old 01-06-2013, 03:24 AM
TrailBLT TrailBLT is offline
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2006 Chevy TrailBlazer LT
Silver Blue Metallic 4.2L I6 4X4
Join Date: Oct 2012
Location: Littleton,Co
Posts: 4
This is the pump probably easier to find then just follow the connector
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  #14  
Old 01-07-2013, 11:53 AM
bgmike109 bgmike109 is offline
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2004 GMC Envoy SLT
Carbon Black Metallic 4.2L I6 2WD
Join Date: Dec 2009
Location: New York, NY
Posts: 24
Is there a test for this pump
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  #15  
Old 02-03-2013, 01:38 AM
LBlaze LBlaze is offline
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2006 Chevy TrailBlazer LT EXT
Bordeaux Red Metallic Other 4X4
Join Date: Feb 2013
Location: Iowa
Posts: 1
I just went through a P0171 nightmare. Into the dealer for 4 days after the first 2 times didn't fix it. $1000 later and they told me it was "rear 2 intake bolts loose."
Round 1- spark plugs, O2 sensor, clean injectors, program pcm and replace air filter
Round 2- Replaced mass air flow sensor
Round 3-Tighten Bolts

After finally picking it up today, I got 2 miles down the road from the dealer and had a flat tire.
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