C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Want to remove Cruise control - vacuum lines?

Old 07-02-2008, 04:32 AM
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conv90
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Default Want to remove Cruise control - vacuum lines?

I'm removing the cruise control. There are 2 vacuum lines starting from it on my '90 vert.
One (the smaller one) is directly connected to the vacuum line that goes to the "ball" vacuum "thing" near the canister in the front of the car. It's connected with a "T" . the other sido of the "T" goes to the check valve near the distributor.
What I've NOT understand is where is going the other vacuum line.
I can cap the first described vacuum line, but I don't know what to do with the second one.
Thanks
-Beppe-
Old 07-02-2008, 04:44 AM
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toptechx6
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Originally Posted by conv90
I'm removing the cruise control. There are 2 vacuum lines starting from it on my '90 vert.
One (the smaller one) is directly connected to the vacuum line that goes to the "ball" vacuum "thing" near the canister in the front of the car. It's connected with a "T" . the other sido of the "T" goes to the check valve near the distributor.
What I've NOT understand is where is going the other vacuum line.
I can cap the first described vacuum line, but I don't know what to do with the second one.
Thanks
-Beppe-
The second vacuum line goes through the firewall to the release switch mounted near the brake pedal, it vents vacuum from the servo to atmosphere when the brake is applied. Since vacuum on that line originates at the servo you are removing you can simply cut it or plug it, your choice, it should cause no problem.
Old 07-02-2008, 04:45 AM
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rodj
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Beppe ,
don't worry about it.The one from the T is the vac supply and the other one from memory goes to the switch on the brake to disengage cruise when you brake.
No vac on supply = no vac on switch.
Simple
Old 07-02-2008, 08:34 AM
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conv90
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Thanks!
I found this on the net.
I used Paint to modify the image.
Is this a good way to plug the vacuum lines?
-Beppe-
Attached Images  
Old 07-02-2008, 09:11 AM
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rodj
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Looks good but you can put a straight joiner in place of the main T and not worry about anything down stream as there will be no vac.
Old 07-02-2008, 03:54 PM
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Comp Tyme
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What Are you planning on doing with the cruise control servo?
Old 07-14-2008, 05:58 AM
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conv90
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OK, Yesterday I removed the Cruise control and the metal braket attached to it. Now the ECM and the Battery are with much more room.
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