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I need vacuum line schematics?

Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
  • 1983 CHEVROLET S-10
  • 2.8L
  • V6
  • 2WD
  • MANUAL
  • 200,000 MILES
I just put head gaskets on a my truck. My problem is I do not remember where the vacuum lines all go. For the carburetor, the distributor vacuum, advance the brake booster hose, and all of the other hoses to the EVAP canister. So on I cannot make heads or tails of the diagrams I have looked at. I have the Haynes manual same thing shows some hand drawn or computer generated diagram. I need actual pictures of these lines on a engine so I can see where they all go. It is mind boggling how many there are I cannot even see where the brake booster or the EGR or the one of the distributor go. Please help.
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,896 POSTS
Hi and thanks for using 2CarPros. Com.

Back in those years, vacuum lines were always a headache. I hope I can help, but I have no pictures other than what is in my manual. I have attached them for you to see. The best I can do is try to answer questions you have as you start working on it.

The first two pictures are for Federal Emissions and not California. Pictures 1 and 2 are the schematic and picture 3 is the routing of the vacuum hoses (which I hope help you locate components. Pictures 4 and 5 are the schematics for California Emissions. I am not sure which you needed.

This can be a nightmare. I hope this helps, though. Let me know if you have questions or need additional information.

Take care,
Joe
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
SCOTTDANNY22
  • MEMBER
  • 36 POSTS
Thank you. Do you know where the brake booster hose hooks to?
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,896 POSTS
The brake booster should hook directly to the intake manifold. It has been a while since I have worked on one. However, I remember if it was not directly to the manifold, there was a large port at the base of the carburetor which had continuous vacuum. Here is what it says from Alldata:

A vacuum check valve, attached to the front vacuum chamber and connected to the intake manifold, traps vacuum in the power unit at the highest level of vacuum.

If you upload pictures of your intake from all angles and the carburetor, I should be able to identify it.

Let me know.

Joe
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
MIKE49120
  • MEMBER
  • 3 POSTS
  • 1983 CHEVROLET S-10
  • 2WD
  • AUTOMATIC
I need a diagram for the vacuum hoses for my 83 s10 they wasnt all there when I got the truck
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I need to know if it's auto or manual transmission and if it's california or federal emissions?
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
MIKE49120
  • MEMBER
  • 3 POSTS
Auto and im pretty sure its federal
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I posted the diagrams for you.
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
MIKE49120
  • MEMBER
  • 3 POSTS
Thank you really needed this
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Friday, August 21st, 2020 AT 10:13 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Your welcome that is what were here for.
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Friday, August 21st, 2020 AT 10:13 AM (Merged)

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