how to locate air vacuum pump in trailblazer - 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 Vortec 4.2L I-6 Engine and Drivetrain > Air Induction

Air Induction Performance Air Intake/Air Induction Modifications

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  #11  
Old 02-25-2009, 02:40 PM
the roadie's Avatar
the roadie the roadie is offline
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2004 GMC Envoy SLT "Roadiemobile"
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Thanks for the report - glad to help. Hope you enjoy the TB!



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  #12  
Old 03-01-2009, 04:56 PM
springbuck springbuck is offline
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2002 Olds Bravada
Midnight Blue Metallic 4.2L I6 AWD
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intake manifold hose missing

took off head,put it back together. but missing a hose from the intake manifold .its the one going on the leftside of black intake composite.where does this missing hose go ?
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  #13  
Old 04-20-2009, 10:14 AM
Nic Nic is offline
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2006 Buick Rainier
Indigo Blue Metallic 4.2L I6 AWD
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I have a P2444 code that i pulled from my 06 buick rainy with 46k valve stuck open bank 1 or something. Should I follow the same steps here?
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  #14  
Old 04-28-2009, 09:22 PM
jv03h jv03h is offline
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2005 GMC Envoy SLT
Cranberry Red Metallic 4.2L I6 4X4
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Checking air pump

When you remove both the air pump hose and the solenoid hose, you should get a blowing out of both.
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  #15  
Old 05-12-2009, 11:26 PM
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Zero Zero is offline
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2005 Chevy TrailBlazer LT EXT
Summit White 4.2L I6 4X4
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Location: Los Angeles, CA / Toronto, ON
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is this a part that should be check by xxxxx# of miles? is it something i should or can i open it to just clean it?

my truck runs fine. but i love to try and prevent problems.


Z
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  #16  
Old 05-18-2009, 02:41 AM
Emmanuel Emmanuel is offline
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I purchased my vehicle brand new in December of 2002 and never had a problem with it. I ran my A/C for the first time this spring since the temperature was above 90 degrees here in Virginia. The coolest that I could get the interior was 80 degrees. I have a vacuum pump and the necessary gauges with lines to check and charge the system, but I am not very knowledgable on this process. I friend at work told me to simply have the system reclaimed and then run a vacuum, check for leaks and recharge the system. I did just that. I took it in and had the system reclaimed. I ran a vacuum down to 30 Hg vacuum for 15 minutes and then shut the guage tree. The vacuum held indicating that there were no signs of a leak. I put in the R-134a freon and the system was taking it like it should. I placed a thermometer in the center vent in the vehicle. After putting in 5 cans (12 oz. each) into the system, I could only get the temperature out of the center vent to 70 degrees and no colder. It use to go down to 58 degrees. The low side pressure reads 50 psi and the high side reads 210 psi.

What could be the problem? To much freon? Bad compressor? Please help as the temperatures out here are approaching 100 degrees with a thousand percent humidity.

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  #17  
Old 05-18-2009, 05:51 AM
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Devilz311 Devilz311 is offline
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Quote:
Originally Posted by Emmanuel View Post
I purchased my vehicle brand new in December of 2002 and never had a problem with it. I ran my A/C for the first time this spring since the temperature was above 90 degrees here in Virginia. The coolest that I could get the interior was 80 degrees. I have a vacuum pump and the necessary gauges with lines to check and charge the system, but I am not very knowledgable on this process. I friend at work told me to simply have the system reclaimed and then run a vacuum, check for leaks and recharge the system. I did just that. I took it in and had the system reclaimed. I ran a vacuum down to 30 Hg vacuum for 15 minutes and then shut the guage tree. The vacuum held indicating that there were no signs of a leak. I put in the R-134a freon and the system was taking it like it should. I placed a thermometer in the center vent in the vehicle. After putting in 5 cans (12 oz. each) into the system, I could only get the temperature out of the center vent to 70 degrees and no colder. It use to go down to 58 degrees. The low side pressure reads 50 psi and the high side reads 210 psi.

What could be the problem? To much freon? Bad compressor? Please help as the temperatures out here are approaching 100 degrees with a thousand percent humidity.

Maybe try and start a new thread in the correct sub-forum, since you have a completely different problem, and it probably won't get seen down here...
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  #18  
Old 05-18-2009, 01:32 PM
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the roadie the roadie is offline
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Quote:
Originally Posted by Emmanuel View Post
... I am not very knowledgable on this process.
That's a problem, and you can damage the system. Get a professional to do the job, or get some training to go with the tools you have. Oh, yes - and please don't hijack a thread like this in the wrong forum and for the wrong purpose.



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