Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
#153
Member
Join Date: May 2009
Posts: 190
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
What a great thread, I am trying to figure out where the third t-hose for my 89 5.0 tpi goes. I have one hose coming in from the fuel tank, another going from the throttle body to the top nipple but the third hose I have is disconnected and just hanging out. I believe it goes over the air inlet nipple and somehow connects to the EGR? The "correct" 85-90" tpi diagram in post 33 I believe shows the third hose,
I actually started a separate thread last night under general engine w pics, I can't post pic from phone it seems
I actually started a separate thread last night under general engine w pics, I can't post pic from phone it seems
Last edited by 89 formula TPI; 05-07-2014 at 08:02 AM.
#154
Junior Member
Join Date: Feb 2012
Posts: 3
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I just collected ALL vacuum lines from 82 - 92 TG F-Bodies!!!! If anyone needs one, drop a line requesting one (along with year, model, engine size, and tranny) and Ill post it up as soon as possible. Models covered with vacuum lines are:
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
#155
Junior Member
Join Date: Mar 2014
Location: Las Vegas, Nv
Posts: 5
Car: 1982 Z28 camaro
Engine: 5.0 (305) for now
Transmission: TH200c
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
TY for the diagram was wondering what lines would I delete if i wanted to delete the smog pump. Thanks in advance...
1982 camaro 5.0 carbureted auto...
1982 camaro 5.0 carbureted auto...
#156
Junior Member
Join Date: Apr 2008
Posts: 1
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I'm working on the air conditioning system in my 1987 Z28 305 automatic trans. Please post or send a vacuum diagram to my email: [email protected]
Many Thanks,
Scott
Many Thanks,
Scott
#158
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
Hi there having some problems with heater working intermittently if i move the harness on the back fire wall could you please post or send vacuum diagram for 1987 carburetor sports coupe my email is [email protected] cheers Gordon
#159
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I'm working on the air conditioning system in my 1987 Z28 305 automatic trans. Please post or send a vacuum diagram to my email: [email protected]
Many Thanks,
Scott
Many Thanks,
Scott
#165
Junior Member
Join Date: Sep 2014
Posts: 44
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I just collected ALL vacuum lines from 82 - 92 TG F-Bodies!!!! If anyone needs one, drop a line requesting one (along with year, model, engine size, and tranny) and Ill post it up as soon as possible. Models covered with vacuum lines are:
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
Are you still taking requests here???
1987 iroc z28 tpi
manual
Thank you.
#174
Member
Join Date: Jun 2013
Location: Oakland California
Posts: 494
Car: 1984 z28
Engine: 305-350
Transmission: T5
Axle/Gears: 7.5" 26 spline 3.73
#175
TGO Supporter
iTrader: (2)
Join Date: Feb 2003
Location: Tampa Bay
Posts: 2,404
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
In a few weeks, my 91 bird goes to mechanic for last bit of things before paint...
Read thread and others, just verifying...
The vacuum line is 1/4" ?
How many feet should I get to redo all of them?
Thanks & my Bird thanks you too
Rafael
Read thread and others, just verifying...
The vacuum line is 1/4" ?
How many feet should I get to redo all of them?
Thanks & my Bird thanks you too

Rafael
#186
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
Just wanted to bring this back up in case anyone is looking and is confused as I was about it.....
I'm fairly certain this first diagram is correct for the 87-89 TPI.
And I think the second diagram should be labeled 85-86 TPI, NOT 85-89.
Someone please correct me if I'm wrong.
I'm fairly certain this first diagram is correct for the 87-89 TPI.
And I think the second diagram should be labeled 85-86 TPI, NOT 85-89.
Someone please correct me if I'm wrong.
#187
Member
Join Date: Dec 2015
Posts: 132
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I just collected ALL vacuum lines from 82 - 92 TG F-Bodies!!!! If anyone needs one, search below on this 1st page. Models covered with vacuum lines are:
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION

#188
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
#189
Junior Member
Join Date: Nov 2013
Posts: 30
Engine: 305 5.0 TBI
Transmission: 700-R4
#192
Junior Member
Join Date: Jan 2016
Posts: 2
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
I just collected ALL vacuum lines from 82 - 92 TG F-Bodies!!!! If anyone needs one, search below on this 1st page. Models covered with vacuum lines are:
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
1982-1984 2.5L TBI
1985-1986 2.5L TBI
1982 2.8L CARBURETED
1983 2.8L CARBURETED
1984 2.8L CARBURETED; EXCEPT CANADA
1984 2.8L CARBURETED; CANADA
1985 2.8L FUEL INJECTED
1986-1989 2.8L FUEL INJECTED
1990-1992 3.1L FUEL INJECTED
1982 5.0L CARBURETED
1983 5.0L CARBURETED
1984 5.0L CARBURETED; EXCEPT CANADA
1984 5.0L CARBURETED; CANADA
1985 5.0L CARBURETED; EXCEPT CANADA
1985 5.0L CARBURETED; CANADA
1986 5.0L CARBURETED; EXCEPT CANADA
1986 5.0L CARBURETED; CANADA
1987-1988 5.0L CARBURETED
5.0L CROSS-FIRE FUEL INJECTION
1988-1992 5.0L THROTTLE BODY INJECTION; MANUAL TRANSMISSION
1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
1985-1986 5.0L TUNED PORT INJECTION
1987-1989 5.0L AND 5.7L TUNED PORT INJECTION
1990-1992 5.0L AND 5.7L TUNED PORT INJECTION
#193
Junior Member
Join Date: Nov 2015
Location: Kansas City
Posts: 50
Car: 1984 &1987 Firebird, 1991 GTA
Engine: 5.0(84) , 2.8(87),5.0(91)
Transmission: Automatic
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
Three questions.....
Why does my 1984 Firebird 5.0 Carburetted have 2 MAP Sensors - one by the blower motor on passenger side, and one by the brake booster?
Secondly, I have 2 vacuum lines on the front side of the EGR solenoid. One goes to the valve, and the other to the carburettor; but there seems to be a port on the back side as well.... Where does this go?
Thirdly, on the back of the carburettor, on the Airhorn, there is a vacuum hook-up-- what goes there?
Why does my 1984 Firebird 5.0 Carburetted have 2 MAP Sensors - one by the blower motor on passenger side, and one by the brake booster?
Secondly, I have 2 vacuum lines on the front side of the EGR solenoid. One goes to the valve, and the other to the carburettor; but there seems to be a port on the back side as well.... Where does this go?
Thirdly, on the back of the carburettor, on the Airhorn, there is a vacuum hook-up-- what goes there?
Last edited by Jacques101; 02-07-2016 at 10:51 AM.
#195
Re: Vacuum Lines Diagrams!!! I GOT THEM ALL!!!!!
Three questions.....
Why does my 1984 Firebird 5.0 Carburetted have 2 MAP Sensors - one by the blower motor on passenger side, and one by the brake booster?
Secondly, I have 2 vacuum lines on the front side of the EGR solenoid. One goes to the valve, and the other to the carburettor; but there seems to be a port on the back side as well.... Where does this go?
Thirdly, on the back of the carburettor, on the Airhorn, there is a vacuum hook-up-- what goes there?
Why does my 1984 Firebird 5.0 Carburetted have 2 MAP Sensors - one by the blower motor on passenger side, and one by the brake booster?
Secondly, I have 2 vacuum lines on the front side of the EGR solenoid. One goes to the valve, and the other to the carburettor; but there seems to be a port on the back side as well.... Where does this go?
Thirdly, on the back of the carburettor, on the Airhorn, there is a vacuum hook-up-- what goes there?