Egr valve - 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 08-05-2010, 02:21 PM
Big Bill's Avatar
Big Bill Big Bill is offline
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2002 Chevy TrailBlazer LT
Imperial Blue Metallic 4.2L I6 4X4
Join Date: Apr 2009
Location: Louisville, KY
Posts: 13
I have been searching prices for the part and finding them from $150- $350. Seems like a wide range. Any suggestions on brand?
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  #12  
Old 08-06-2013, 05:04 PM
Forrestnummy Forrestnummy is offline
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2004 Chevy TrailBlazer LS
Sand Beige Metallic 4.2L I6 2WD
Join Date: Aug 2012
Location: College Station, TX
Posts: 73
Sorry, but YES there is an EGR check valve and pump on the trailblazers. The check valve is on pass side, above the exhaust manifold and under the air intake to the throttle body. The pump, which is listed on amazon as a fuel pump is under the car on the the driver side on the rail. Just slide under the car like you are going to the fuel filter or to drain the tranny. You will see the hoses and the pump. The EGR check valve on the engine has a hose coming out of the back and the power plug on top.

check valve- ACDelco 214-2222 Air Check Valve

pump- ACDelco 215-454

gasket- ACDelco 219-351 Gasket

Those are for the 2004 i6 LS 4.2. I dont know if they are the same on all the models and engines. Just wanted to get the right answer in here.
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  #13  
Old 11-18-2013, 10:11 AM
rmb019 rmb019 is offline
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2006 Chevy TrailBlazer LT
Majestic Red Metallic 4.2L I6 4X4
Join Date: Nov 2013
Location: Arkansas
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Quote:
Originally Posted by Big Bill View Post
I have been searching prices for the part and finding them from $150- $350. Seems like a wide range. Any suggestions on brand?
Yes. http://shop.advanceautoparts.com/web...searchTerm=fan.
Ditch that clutch fan.
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  #14  
Old 11-19-2013, 10:10 AM
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glfredrick glfredrick is offline
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2003 Chevy TrailBlazer LS
Black 4.2L I6 4X4
Join Date: Dec 2005
Location: Louisville, KY
Posts: 1,236
Rockauto.com -- reliable on-line parts.

2002 CHEVROLET TRAILBLAZER 4.2L L6 : Cooling System : Radiator Fan Clutch PriceAlternateNo parts for vehicles in selected markets.DORMAN Part # 622001 {#15293048, 25790869}
Electronically Controlled by the ECM
$114.89HAYDEN Part # 3200 Electronic
Reverse Rotation Severe Duty Thermal Fan Clutch
$132.79FOUR SEASONS Part # 46024
Reverse Rotation Severe Duty Thermal Fan Clutch
$193.79ACDELCO Part # 1540133 {Click Info Link for Alternate/OEM Part Numbers10383029, 15071248, 15116115, 15192192, 15293048, 1540049, 1540125, 154937, 154953, 154958, 154969, 154994, 15802524, 25790869, 89040306}
CLUTCH,FAN BLADE
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  #15  
Old 11-19-2013, 10:25 AM
Forrestnummy Forrestnummy is offline
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2004 Chevy TrailBlazer LS
Sand Beige Metallic 4.2L I6 2WD
Join Date: Aug 2012
Location: College Station, TX
Posts: 73
Nice

Nice post. I went with the AC Delco fan clutch. There are just too many reviews of horror stories behind the dorman and 4 seasons. It costs more but I dont want to have to change it out 3 times in less than a year. I want it to go for another 88,000 miles. After replacing every part on my trailblazer, i have learned that I do not trust anything other than delphi or ac delco (same part) I have just had too much bad luck with dorman parts not working right and BWD parts not working right, or being bad right out of the box. The bad thing about that is, you just put a new part on, so in your mind you think, "well I just replaced that part, so something else has to be wrong" Or even worse, the part only works for a few weeks. That will spin you in circles. I just dont waste my time anymore. The amount of time and money that I have lost going with cheaper parts, was just not worth it.
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