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Vacuum line replacement

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Old Feb 11, 2026 | 02:25 PM
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sparklepony
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From: Angels Camp
Vacuum line replacement

I still have what looks like the original vacuum lines on this truck - I have patched one but really want / need a better solution before they all give way.
is there a reference chart as to the length of each required diameter so at least I can try to shop these ?
 
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Old Feb 11, 2026 | 03:23 PM
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the part manual lists some specific hoses and for some it just says to cut correct length from bulk hose. Amazon has kits that contain various lengths of 1/8 thru 3/8" hose as well as some kits with various connectors in case any of your plastic tees are also degraded.
 
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Old Feb 11, 2026 | 03:50 PM
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From: Angels Camp
Originally Posted by dlburch
the part manual lists some specific hoses and for some it just says to cut correct length from bulk hose. Amazon has kits that contain various lengths of 1/8 thru 3/8" hose as well as some kits with various connectors in case any of your plastic tees are also degraded.
thank you - I did find a reference in the vacuum booklet an image of every engine except the 5.8L - I am assuming it is the same as the 5.0 ?
I was thinking that it would be easier to re-trace the lines if they were colored like the factory but it looks like it's going to be all black...

I would also think that after all of this time that the connectors are shot or at least not in prime condition.


 
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Old Feb 11, 2026 | 04:27 PM
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Small vacuum hose is 5/32"
Power brake booster is 11/32".
I think PCV hose is 3/8" fuel line.
 
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Old Feb 11, 2026 | 04:43 PM
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Looks like you might be working on a newer truck, but same suggestions still apply.
 
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