V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

throttle body

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Old Dec 20, 2010 | 07:33 PM
  #1  
TheSwarm666X's Avatar
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Joined: Aug 2010
Posts: 82
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From: Florida
Car: 1988 firebird
Engine: 2.8 V6
throttle body

there is two pipes for vacuum lines on the bottom of the throttle body.
what are they called and where do they go?
i tried looking for the information but i can't find it. sorry for the novice question haynes just tells me to make note on all the lines when i disconnect them and i can't find the info by the search bar, and i got the car with out some things and other things going to wrong spots and bypassed to arias that make no sense.
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Old Dec 20, 2010 | 08:13 PM
  #2  
86ttopbird's Avatar
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Joined: Sep 2009
Posts: 354
Likes: 1
From: Manchester,PA
Car: 86 Firebird SE
Engine: 2.8L
Re: throttle body

If you are referring to the bottom of the throttle body, those are coolant lines put there by GM to keep the throttle body from freezing up. If you are talking about the big one near the top, that goes to the big plastic vacuum tree in the back of the engine. The metal tube that looks like accordion shaped is your EGR feed line that feeds exhaust gasses back into the intake stream. The only real vacuum connections are the large plastic line and the smaller plastic lines near the IAC valve that feed everything else.
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Old Dec 21, 2010 | 08:37 AM
  #3  
TheSwarm666X's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2010
Posts: 82
Likes: 0
From: Florida
Car: 1988 firebird
Engine: 2.8 V6
Re: throttle body

ya, the coolent lines. where do they route to? also could i get a picture of your throttle body? from your reply i am now thinking other things might be different.
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Old Dec 21, 2010 | 12:30 PM
  #4  
Gumby's Avatar
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Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: throttle body

your in Florida and reguardless of recent weather, you don't need it

#1 thing folks unhook on purpose.
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