2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Help -- vacuum lines on 89 t2

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Old Aug 23, 2003 | 09:38 AM
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Help -- vacuum lines on 89 t2

the three lines that are in the front of the TB, does it matter which one goes where? All three seem to be for vacuum. And one seems to be reversed because the line doesn't rest in a natural state... they look criss-crossed


Anyone have a pic of how they should look?

Last edited by Fingers; Aug 23, 2003 at 09:42 AM.
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Old Aug 23, 2003 | 09:42 AM
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i appologise for the topic, i just realized how vague it is, and inappropriate. I will try and edit it at once.
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Old Aug 23, 2003 | 09:50 AM
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ok get out your handy-dandy FSM go to chapter 4B and page 5 thier is your TB vacume diagram

sorry my bad thats for a 87 one sec ill get it
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Old Aug 23, 2003 | 09:53 AM
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for a 89 its chapter 7
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Old Aug 23, 2003 | 09:59 AM
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umm chapter 7 is for the tranny. but i'll look around, thanks
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Old Aug 23, 2003 | 10:01 AM
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I see what you mean, but that doesn't really tell me whether or not two of those lines could be crisscrossed, or where the hell they go/what they do. Anyone know?
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Old Aug 23, 2003 | 11:51 AM
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It won't matter if they are crossed, they are all just a vac source.
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Old Aug 23, 2003 | 01:37 PM
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sorry i didnt help i was running out the door when i replied
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Old Aug 23, 2003 | 03:47 PM
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the 3 on the front are the same doesn't matter. the rear ones are different and need to go to the right ones.
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Old Aug 23, 2003 | 05:34 PM
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Wrong, they're not all vacuum. The middle one (which goes to the top of the purge control valve) if fed from before the throttle.

Look on pages F2-6 and F2-7 of the 89 FSM.
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Old Aug 24, 2003 | 06:17 PM
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so i guess it does matter then, right NZ?
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Old Aug 25, 2003 | 08:03 AM
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Bump?
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Old Aug 25, 2003 | 08:19 AM
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They're only emissions related, but if you want it all to work properly then they need to be in the right place.

Look in the EFI chapter of the FSM. Between the system diagram on page F2-6 and the vacuum hose routing diagram on page F2-7 you can work out where everything goes.
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Old Aug 26, 2003 | 07:02 AM
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iiinnnteresting... i'll swap em t'night and tell ya what's what.

Thanks NZ
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