You are the man

I know. Hahaha.

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

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

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...

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

Smog pump has nothing to due with vacuum lines.

All available vac lines are posted.

AC has nothing to do with vac lines other than the vac line that is in the harness by firewall.

man you hit home with this thanks!!

I had never noticed this thread. Has mine in it. Copied for future reference. Thanks!

1991 Trans Am 5.0 TPI

Subscribed

86 Z28 carb 305 vin h

Are you still taking requests here???
1987 iroc z28 tpi
manual

Thank you.

Hey do you have the vac line diagrams for a 84' v6 2.8 L firebird?

1988-1992 5.0L THROTTLE BODY INJECTION; AUTO TRANS.
Need Vacuum line diagrams

Everybody everybody everybody. All the diagrams that I have available are on page 1. Thank you.

This thread is still helping people 3 years on, Thanks for sharing.

Anytime bro. Glad to be of help.

I have a 1990 5.0L AND 5.7L TUNED PORT INJECTION IROC-Z automatic. The hose is missing from the heater control valve. I need to know where it is routed from.

Great post

do you still have the vac diagrams available for a "1987-1989 5.0L AND 5.7L TUNED PORT INJECTION, Auto trans" Thanks

First page.

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

I have a 85 Chevy pick up 305 700r4 I need specs for a vacuum exhaust system that has the emissions system taken off can you help

Could someone please tell me where does the hose from the EGR valve connect to the solenoid... There are two connections .. Up or bottom?
*

All for a 89 305 tbi 700r4 ac/emissions/ cruise

I have a 82 Camaro with a carbureted 350. Can you send me the diagram for it. please and thanks!

It's on page 1 bro.

Nice!!!

Need Emission Vaccum Hoses Routing for the following:
1984 Chevrolet C-10 Scottsdale 5.0L Automatic Transmission 2WD
Many Thanks!

1984 camaro SC 2.8l carb please

Need vacum lay out for 1987 Pontiac firebird 5.7!!!!

Also location of oil pressure sensor I think I see it on the passenger side but there's no wire going to it 1987 Pontiac firebird!!!

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 need this one for an 86 5.0 tpi

https://www.thirdgen.org/forums/tech...ml#post5301196

Why does it not show where the valve cover breathers connect to the intake? Or the other piece that connects to the manifold to the intake?

I dont know. This is how the diagrams show on my manuals.

84 bronco 2 vacuum line diagram 2.8 4x4

84 bronco 2 vacuum line diagram 2.8

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?

The egr solenoid should have a small foam filter on the 3rd port.
As for the 2 MAP sensors, I don't know. I'm a MAF guy.

https://www.thirdgen.org/forums/atta...e-dsc00393.jpg

What you see is what I got boss.

Z28 82 please. Thanks in advance.

Stickey please!

It's all in the first page bro.

I tried to make it a sticky. I'll get with the admins so that it can be posted in the "Tech" section on the home page.