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Vacuum Diagrams

Old 08-26-2011, 12:26 PM
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Re: Vacuum Diagrams

Originally Posted by KITT1983
hey do you know where i can get an egr solenoid for a 1983 crossfire firebird
Sorry, no. If you are not looking for a perfect restoration part, almost any of the other GM models' factory EGR solenoids from the early 80 will be darn close if not the same. Good boneyard hunting!

KTF
Old 09-14-2011, 05:44 PM
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Re: Vacuum Diagrams

Hey if any body could help my I need a vacuum diagram for a '87 LS Camaro 2.8L Crossfire Multi-port fuelinjected v6. TBI and TPI diagrams do not work for my style motor. Thanks for any help.
Old 10-15-2011, 03:42 PM
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Re: Vacuum Diagrams

What will i need to replace my egr valve? I have a camaro rs tbi 305 5.0ltr. My car flutters when i dont give gas. Acts like it wants to turn off but doesn't. I had a diagnostic done a year ago and they said I had a Minor leak at the egr. So i assume thats the problem
Old 10-16-2011, 06:02 PM
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Re: Vacuum Diagrams

Hi, I would make double-sure that it isn't something else first. Do a tune-up, check for vacuum leaks (those rubber lines aren't getting any younger), and try some injector cleaner in the tank. If the EGR does need replacing, they are pretty reasonable at the auto part stores. I like to check online first so I have the correct part No. and price before I walk in the store. Also, be very careful as to which line goes where as I noted in an earlier post (the solenoid valve is specially designed to be connected one way only).

Good luck!
Old 11-04-2011, 04:36 PM
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Re: Vacuum Diagrams

Does anyone have an actual pic of the car for a 84 Berlinetta for the TVS swirtch? I need to replace or bypass mine. It broke off and i have no idea where to connect a new one. My water neck has a TVS switch on the right side of the neck and a coolant temp sensor on the left. I have the SB 305 W/4BBL
Old 01-23-2012, 12:57 PM
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Re: Vacuum Diagrams

go with the 86-89 since they uused the Mass Air Flow the 90-92 switched to the speed density.



Originally Posted by coyote452002
Guys I just bought a 91 Camaro Z28 Convertible, it had a 305 TBI. I did away with it and I installed a TPI system from a 1989 IROZ with a Mass Air Flow Sensor . I kept the original 1991 vent canister wich has a different diagam. My question is, should I set the vacuum lines up as the TPI 90-92 or should i find the vent canister for a 86-89 TPI?????
Old 04-09-2013, 03:40 PM
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Re: Vacuum Diagrams

A post with many diagrams in it:

https://www.thirdgen.org/forums/tech...iagrams-i.html
Old 04-15-2013, 09:16 PM
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Re: Vacuum Diagrams

Originally Posted by Benm109
I'm assuming it's the 86 in your sig:


Also, for anyone who is looking for vacuum diagrams for your 3rd gen, just go to link below. It's got all the vacuum diagrams for the different engines over the years. Here it is: http://www.autozone.com/servlet/UiBr...3d80163807.jsp
the links are dead
Old 10-01-2013, 12:16 PM
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Re: Vacuum Diagrams

need hoses diagram from air pump to diverter to manifolds to catalytic converter please
Old 10-02-2013, 04:52 PM
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Re: Vacuum Diagrams

Originally Posted by slowboy
need hoses diagram from air pump to diverter to manifolds to catalytic converter please
Sorry man. Those aren't vacuum lines. But I'll still hook you up. I need to know the year and model of your Camaro. What I will do is take a screen print of my parts and illustration of the emissions system. It should show everything you need. I'm currently at school right now. Bit I'll try to remember when I get home.
Old 10-02-2013, 11:00 PM
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Re: Vacuum Diagrams

www.camarosource.ca has diagrams in their tech sections
Old 10-03-2013, 06:41 AM
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Re: Vacuum Diagrams

Originally Posted by Chevy86 IROC-Z
Sorry man. Those aren't vacuum lines. But I'll still hook you up. I need to know the year and model of your Camaro. What I will do is take a screen print of my parts and illustration of the emissions system. It should show everything you need. I'm currently at school right now. Bit I'll try to remember when I get home.
yea I know they aren't vacuum lines, but I couldn't find anything on here about the emissions hoses...my Camaro is a 1990 RS, 305 has been replaced with 350, and 5 speed...
Thanks for your help!!
Keith
Old 10-30-2013, 08:40 AM
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Re: Vacuum Diagrams



the diagram doesnt help a lot when everything is disconnected..

can anyone point out, what needs to be connected where?

L69 H.O. CCC Quadrajet
Old 02-28-2017, 02:01 AM
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Re: TPI Vacuum Diagrams

Originally Posted by Chevy86 IROC-Z
Here are 2 different vacuum diagrams for the TPI system. Just follow the link. https://www.thirdgen.org/forums/post...48-post12.html
Not sure if it is ok to ask a question if thread is this old. Thanks for the diagrams. Just to make sure on the 87-89 tpi engine, the top tip of the two vacuum tips on the canister, the top tip hose would route to the plenum? It seems that way from what I can see.
If that is the case I have the 2 lines transposed. the top tip hose(control valve) hose going to the plenum the bottom tip hose going to the fuel return line. What would this cause? Thank you Chevy86
Old 07-26-2017, 07:31 PM
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Re: Vacuum Diagrams

pretty much all the diagrams can be located within this post

https://www.thirdgen.org/forums/tech...al-sticky.html
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