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Old May 5, 2023 | 12:37 PM
  #1  
Brocoholic's Avatar
Brocoholic
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Vacuum issue

Hello everyone, I am swapping out my old rotted out vacuum lines and need some guidance. A lot of them are very fragile and/or already broken...so I'm having trouble tracing them. And the sticker is faded and kinda confusing.
Truck is a '90 Bronco with a 302.
if some of y'all would be so kind as to post some pics of what its supposed to look like that would be helpfull.
Attached pics are of my diagram and a broken line under the throttle body that I'm not sure where it goes.
what does the highlighted part of the diagram represent?
Thanks!

 
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Old May 16, 2023 | 03:17 PM
  #2  
KBMAZ's Avatar
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Fuel Vapor line

Originally Posted by Brocoholic
Hello everyone, I am swapping out my old rotted out vacuum lines and need some guidance. A lot of them are very fragile and/or already broken...so I'm having trouble tracing them. And the sticker is faded and kinda confusing.
Truck is a '90 Bronco with a 302.
if some of y'all would be so kind as to post some pics of what its supposed to look like that would be helpfull.
Attached pics are of my diagram and a broken line under the throttle body that I'm not sure where it goes.
what does the highlighted part of the diagram represent?
Thanks!

I looked at my '88 Bronco w/ 5L EFI.
This looks like one of the two lines that connect to each venturi (left side) of the throttle body.
These 2 lines T into one and that lines run over to the Fuel Vapor recapture tub just under the battery tray (Front right of engine compartment)
 
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Old May 20, 2023 | 11:24 AM
  #3  
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Originally Posted by Brocoholic
Attached pics are of my diagram and a broken line under the throttle body that I'm not sure where it goes.
what does the highlighted part of the diagram represent?
Thanks!
I agree. That appears to be the fuel vapor line. That should be showing the connector for the two parts of the vacuum lines.


Originally Posted by KBMAZ
Fuel Vapor recapture tub
i.e. charcoal canister
 
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