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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Vacuum line location?

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Old Nov 9, 2025 | 05:24 PM
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Vacuum line location?
Where is this vacuum line supposed to go?

 
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Old Nov 9, 2025 | 06:09 PM
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What are you working on? Is the vacuum diagram attached to the air box lid or on the bottom of the hood?
 
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Old Nov 9, 2025 | 06:12 PM
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Wasn't really working on anything, just bought the truck and noticed it was disconnected and can't figure out where it goes. I do have the diagram but still can't tell.
 
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Old Nov 9, 2025 | 06:39 PM
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Year, model and engine is what he’s asking for.
 
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Old Nov 9, 2025 | 06:41 PM
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🤦 sorry. 5.8 in a 92 f150.
 
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Old Nov 9, 2025 | 06:50 PM
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Looks like it’s either that TAD or TAB hose. There are vacuum diaphragms behind the engine. It goes to the one that doesn’t have a vacuum hose attached. Follow the yellow one, that will tell you the area to look.
 
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