Throttle body - 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 5.3L V8 Engine and Drivetrain > Air Induction

Air Induction Performance Air Intake/Air Induction Modifications

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  #1  
Old 05-01-2012, 10:52 PM
Me Truck Me Truck is offline
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2004 Chevy TrailBlazer LS
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Throttle body

How do you adjust the throttle body on a 04 trailblazer.. Looking for a way..
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Old 05-01-2012, 11:55 PM
Kardain Kardain is offline
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The throttle is electronically controlled via drive by wire. It would require access to tuning software/hardware to adjust assuming the tables are present in 04 modules.
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  #3  
Old 05-02-2012, 07:39 PM
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petevw petevw is offline
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Quote:
Originally Posted by Kardain View Post
The throttle is electronically controlled via drive by wire. It would require access to tuning software/hardware to adjust assuming the tables are present in 04 modules.
Correct....all controlled by PCM (computer).

Why would you want to change it anyway?? If it's idling too high or low, there are other reasons most likely.
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  #4  
Old 05-03-2012, 10:35 PM
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Strom Strom is offline
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PCM4LESS tune... also cleaning (fully removed, and battery disconnected) will do wonders too if it dirty.

Also as above, if running too low or too high, something else is wrong.
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Old 05-03-2012, 11:53 PM
Me Truck Me Truck is offline
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Quote:
Originally Posted by petevw View Post
Correct....all controlled by PCM (computer).

Why would you want to change it anyway?? If it's idling too high or low, there are other reasons most likely.
I have removed it and cleaned it.. The truck is drinking gas.. That is why i thought maybe the throttle body needed adjusting.

================================================== =========
Also i need to know where the Mass Air Flow Sensor is located...
I am not sure how to reply to your answer.. I hope that you get this..
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Old 05-04-2012, 12:16 AM
Kardain Kardain is offline
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Doesn't have a maf in 04
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Old 05-04-2012, 12:21 AM
Me Truck Me Truck is offline
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WOW

What controls the air if there is not a MAF?
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Old 05-04-2012, 12:27 AM
Kardain Kardain is offline
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The throttle.

Engine/PCM combos that lack a maf are known as speed density engines (or speed density tunes)

The air fuel mix is calculated by a combination of the map sensor, iat, coolant temp sensor, and an estimate of volume efficiency.
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Old 05-04-2012, 01:03 AM
Me Truck Me Truck is offline
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MAF Sensor

Does your 2006 have a MAF on it... What year did they started using the Maf

I am thinking should i get rid of this truck or poor money into it..

What about the trailblazer with the turbo engines..
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Old 05-04-2012, 01:04 AM
Me Truck Me Truck is offline
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Quote:
Originally Posted by Kardain View Post
The throttle.

Engine/PCM combos that lack a maf are known as speed density engines (or speed density tunes)

The air fuel mix is calculated by a combination of the map sensor, iat, coolant temp sensor, and an estimate of volume efficiency.
Does your 2006 have a MAF on it... What year did they started using the Maf

I am thinking should i get rid of this truck or pour money into it..

What about the trailblazer with the turbo engines..
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