disconnected vacuum lines - Forums at Modded Mustangs
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post #1 of 4 Old June 7th, 2011, 03:56 PM Thread Starter
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disconnected vacuum lines

first off i dd a 92 5.0 lx

and i found my vacuum leak. its a thin black hose running from behind the intake between the engine and firewall. im not quite sure what it does but its not connected to anything at all

i also have a ton of other vacuum lines that id like to connect. im not too hip on all the vacuum line lingo so diagrams are difficult to read and apply

can you guys help me pinpoint what each line in the harness does and where it may go? also im in ca so i need to be a able to pass smog. do any of these affect emissions?

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post #2 of 4 Old June 7th, 2011, 04:13 PM
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The first line goes to a black check valve on the firewall, close to the hood hinge on the passenger side. The others go to smog pump and other stuff, I'd have to walk you threw those.
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post #3 of 4 Old June 7th, 2011, 05:41 PM
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does your car still have the smog pump? I see the thick hose that goes to it in the picture. i cut those same black and white lines on mine and capped them off when i bypassed mine.

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post #4 of 4 Old June 8th, 2011, 09:07 PM
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try this diagram its for an 88 gt so it will help http://www.veryuseful.com/mustang/te...g5.0Vacuum.gif

also this site has a ton of goodies.
Mustang FAQ - Wiring & Engine Info

hope this helps.
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