brake servo vacuum hose hiss?

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Koren
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brake servo vacuum hose hiss?

Post by Koren »

Removed the vac hose from the servo end when removing UIM, as the other end of the hose didn't want to come off. It made a hissing noise as I disconnected it, pressure escaping I guess. Do I need to do anything special other than refit and start the engine as normal?
2004 Nordic Green 231hp Street Port rebuilt by TPS 2021. Rotary Revs D585 coils, Sohn adapter, Axial flow quickshift, Toyosport catback
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warpc0il
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Re: brake servo vacuum hose hiss?

Post by warpc0il »

The hiss would have been vacuum, e.g air going in not coming out.

There's a non-return valve to hold vacuum in the servo.

When you restart the engine, give the throttle some light blips before driving, so the vacuum can accumulate and ensure that you have fully working brakes.
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Koren
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Re: brake servo vacuum hose hiss?

Post by Koren »

Ah yes, that makes sense. Thanks a lot!
2004 Nordic Green 231hp Street Port rebuilt by TPS 2021. Rotary Revs D585 coils, Sohn adapter, Axial flow quickshift, Toyosport catback