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Hard vacuum line to the brake booster (L98)

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Old 09-17-2018, 12:19 AM
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Yariv
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Default Hard vacuum line to the brake booster (L98)
Hi,
What is the purpose of the hard vacuum line from the plenum to the booster?
How does it work?
Thanks.
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Old 09-17-2018, 01:39 AM
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Hot Rod Roy
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Seriously?

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Old 09-17-2018, 01:40 AM
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Originally Posted by Hot Rod Roy
Seriously?

yes.
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Old 09-17-2018, 03:06 PM
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confab
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It acts on the diaphragm inside the booster.. Unplug it and the pedal effort goes way up.

Why do you ask?
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Old 09-18-2018, 12:07 AM
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Originally Posted by confab
It acts on the diaphragm inside the booster.. Unplug it and the pedal effort goes way up.

Why do you ask?
Thank you.
I just took off the plenum and I wonder If it is needed to use thread seal tape in order to seal it well or not needed?
Thanks
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Old 09-18-2018, 12:17 AM
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confab
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Not really, because it is a flare fitting the the seal happens at the connection itself.

Tape on the threads will not help it seal.
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Old 09-18-2018, 12:19 AM
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Look inside the 16MM/5/8 pipe fitting and you will see where it seals.
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