P0410 Code - Page 62 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2006 - 2009 TrailBlazer SS Tech > 06-08 SS General Tech Q&A > General

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  #611  
Old 11-13-2014, 03:31 PM
Black Castle's Avatar
Black Castle Black Castle is offline
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2004 Chevy TrailBlazer LS
Black 4.2L I6 2WD
Join Date: Dec 2008
Location: Florida
Posts: 14
I read and read and read this thread. Is there any videos of removal and replace of the air pump and check valve?
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  #612  
Old 07-28-2015, 06:46 PM
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tin tin is offline
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2005 Chevy TrailBlazer LS
Summit White 4.2L I6 4X4
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Location: South elgin Il
Posts: 40
air pump

I have just changed the air pump ,no problems after that but I have a question this is the second one in 3 years and they always fail because of water ,so how can I prevent from going bad again because of water specially if it rains a lot ?
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  #613  
Old 11-27-2015, 03:30 PM
tlinetrader tlinetrader is offline
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2004 Chevy TrailBlazer LT
Black Granite Metallic 4.2L I6 AWD
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Location: Buffalo, NY
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I've been working on this problem and am replacing the check valve. I have an 04 trailblazer. Anyone know why the electrical connector on the check valve has 5 pins? According to the schematics Ive seen on this thread there appear to be only two wires.
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  #614  
Old 10-06-2016, 08:56 AM
Mankthetank19 Mankthetank19 is offline
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2006 Chevy TrailBlazer LS
Black Granite Metallic 4.2L I6 2WD
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Originally I had the P2440 error code.

I had my buddy replace the solenoid, air pump, and the relay.

After replacing these parts (ACDelco parts), I now get the P0411 error code which brings me back to square one.

Any assistance is appreciated!
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  #615  
Old 08-17-2017, 12:08 AM
counterpoint counterpoint is offline
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2009 SAAB 9-7x
Black 4.2L I6 AWD
Join Date: Oct 2015
Location: Sterling Heights, MI
Posts: 21
P0411 Code

Thought I'd share my experience.

I got a check engine light and after I used a scan tool it gave me a P0411 code as well as no SAI pressure during cold startup. After doing some research I did all the usual. Pulled the hose on the SAI valve and it was clean and dry. Checked continuity on the fuses and they were good. Got underneath the car, pulled the hoses on the air pump and they were clean and dry. Then I pulled the harness off the relay and water poured out. Bingo.

Unbolted the old relay and tested it. Applied 12V to the small leads and it clicked. Checked continuity on the large leads and it failed. Relay was bad.

Ordered a new relay from Amazon. Applied heat with a heat gun to dry out all the water in the harness. Installed new relay. Reset battery.

Heard the SAI pump run on cold startup. Check engine light hasn't come back.

Problem solved.
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  #616  
Old 02-14-2019, 07:43 PM
kenzoil kenzoil is offline
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2007 Chevy TrailBlazer LS
Bordeaux Red Metallic 4.2L I6 4X4
Join Date: Mar 2011
Location: CT
Posts: 62
Question location of air valve solenoid RELAY

Long thread, but can someone tell me exactly where the RELAY is for the air injection valve ? I know where the relay is for the pump, and have replaced that. I can't seem to find it located in fuse box under the hood. Have a 2008 L6 engine. If it's in that fuse box, which number is it? and does it have a fuse associated with it also? Thanks
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  #617  
Old 02-14-2019, 08:21 PM
counterpoint counterpoint is offline
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2009 SAAB 9-7x
Black 4.2L I6 AWD
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Quote:
Originally Posted by kenzoil View Post
Long thread, but can someone tell me exactly where the RELAY is for the air injection valve ? I know where the relay is for the pump, and have replaced that. I can't seem to find it located in fuse box under the hood. Have a 2008 L6 engine. If it's in that fuse box, which number is it? and does it have a fuse associated with it also? Thanks
In the fuse box under the hood for your vehicle it should be #55 Air Solenoid.

For my 2009 Saab 9-7X it is #69 located in the same vicinity.

There is also an air solenoid fuse.
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  #618  
Old 02-14-2019, 09:26 PM
kenzoil kenzoil is offline
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2007 Chevy TrailBlazer LS
Bordeaux Red Metallic 4.2L I6 4X4
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Location: CT
Posts: 62
Question

Does anyone know, if the air solenoid valve is not working, can this cause the air pump to not work or engage on start up?
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  #619  
Old 02-14-2019, 10:32 PM
counterpoint counterpoint is offline
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2009 SAAB 9-7x
Black 4.2L I6 AWD
Join Date: Oct 2015
Location: Sterling Heights, MI
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Quote:
Originally Posted by kenzoil View Post
Does anyone know, if the air solenoid valve is not working, can this cause the air pump to not work or engage on start up?
Not sure. As far as I know its either the relay or the pump itself. If water is in there, the cold winter temperatures can cause the water to freeze and damage the pump or at least prevent it from spinning. I would wait at least until it warms up above freezing and check it then. And pull the hoses off the pump to drain any water.
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  #620  
Old 03-01-2019, 04:38 PM
dwedge dwedge is offline
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Join Date: Mar 2019
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Question dwedge

Hi I have a 2005 Chevy Trailblazer LT EXT 4 wheel drive and I got the code PO 410 secondary air injection system how do I fix this?
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