Dumb, but totally necessary question... (Full Version)

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Dumb, but totally necessary question...

  

RyanCodyH3 -> Dumb, but totally necessary question... (7/6/2008 11:38:03 AM)

Don''t laugh, but... how do you rev the engine without pushing the gas pedal??

I know there is some kind of lever or something under the hood that I can pull or whatever.

Yes, I feel dumb, but would really like to know :)

  
The Dark Knight -> RE: Dumb, but totally necessary question... (7/6/2008 11:52:02 AM)

It''s called the throttle body. Most of them have a little tip on the outside that is connected to the throttle blade mechanism. In fact, your gas pedal has a cable, which runs from the inside compartment to the engine bay, and connects to the throttle mechanism. When you press on the peddle, you tighten and pull the throttle cable, which in turns opens the throttle blade to allow air into engine. It''s pretty simple and straight forward.

RyanCodyH3 -> RE: Dumb, but totally necessary question... (7/6/2008 12:21:43 PM)

Yes, I know what the throttle body is, cant find this cable/tip... took a few pictures, maybe someone can help me locate it...


RyanCodyH3 -> RE: Dumb, but totally necessary question... (7/6/2008 12:24:58 PM)

The site isnt letting me post pictures

Black_Impala -> RE: Dumb, but totally necessary question... (7/6/2008 2:55:14 PM)

Don''t feel too bad, I haven''t looked lately, but I seem to remember it being covered by a plastic shroud.

phazer42 -> RE: Dumb, but totally necessary question... (7/6/2008 8:37:39 PM)

most modern engines are actully Fly-by-Wire which means your accelerator pedal will move a potentiometer adistance "X" which gets translated in the computer as throttle position "y"

I am pretty sure all of GM currently has fly by wire.... the H2s and H1 TDs are....

RyanCodyH3 -> RE: Dumb, but totally necessary question... (7/6/2008 8:51:42 PM)

quote:

ORIGINAL: phazer42

most modern engines are actully Fly-by-Wire which means your accelerator pedal will move a potentiometer adistance "X" which gets translated in the computer as throttle position "y"

I am pretty sure all of GM currently has fly by wire.... the H2s and H1 TDs are....


So in the H3, I can''t do it?

phazer42 -> RE: Dumb, but totally necessary question... (7/6/2008 9:42:34 PM)

I don''t know for sure, I am not totally familiar with the engine compartment on there.... but likley no......

n0m4d -> RE: Dumb, but totally necessary question... (7/7/2008 4:19:18 AM)

The gas pedal on the H3 is electronically operated.  There is no mechanical cable from the inside to the engine, just wires.  Its one of the things that drives me nuts about my H3, the computer lag.  Every once in a while, esp when waiting to pull out in traffic, there is a lag as the computer tries to compute how to deal with me mashing on the gas pedal most efficiently.  It may be more pronounced with the 5sp.

HummerMike -> RE: Dumb, but totally necessary question... (7/7/2008 6:59:26 AM)


quote:

ORIGINAL: phazer42

most modern engines are actully Fly-by-Wire which means your accelerator pedal will move a potentiometer adistance "X" which gets translated in the computer as throttle position "y"

I am pretty sure all of GM currently has fly by wire.... the H2s and H1 TDs are....


The above is correct. there is no cable under the hood. the gas pedal electronically controls the throttle. All modern GM is fly by wire.

rob85635 -> RE: Dumb, but totally necessary question... (7/7/2008 9:47:16 AM)

Not a dumb question, as you see from the responses :)  I learned something.

Rob

The Dark Knight -> RE: Dumb, but totally necessary question... (7/7/2008 1:21:43 PM)

quote:

ORIGINAL: rob85635

Not a dumb question, as you see from the responses :)  I learned something.

Rob


Apparently, so did I. I didn''t know until now GM uses the fly-by wire technology in the Hummers.

H3Dude812 -> RE: Dumb, but totally necessary question... (7/7/2008 1:55:25 PM)

I notice the lag as well.  anyone know how to correct that?

Ryan Graham -> RE: Dumb, but totally necessary question... (7/8/2008 9:17:28 PM)

There''s no way to correct the "lag."  When the computer sees wide open throttle, it has to deal with a hundred other parameters before it will give you wide open throttle. 


CWS -> RE: Dumb, but totally necessary question... (7/9/2008 10:38:30 AM)

Jiggle the framistan.

  

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