vacuum hose: UIM to brake booster

Reply Subscribe

Thread Tools

Search this Thread

Sep 4, 2025 | 01:55 PM

rescueranger

Thread Starter

Senior Member

iTrader: (16)

Joined: Jul 2003

Posts: 736

Likes: 1

From: nova

vacuum hose: UIM to brake booster

question: is there a check valve in the vacuum hose that's connected to the UIM to metal hose before brake booster?

i can verify the hose thats directly connected to the brake booster has one.

source: shop manual (P) braking systems

Sep 4, 2025 | 03:20 PM

RLaoFD

Brappable not Unflappable

iTrader: (7)

Joined: May 2005

Posts: 1,392

Likes: 8

From: Bay Area

Yes, there was an internal one-way check valve in that hose, but there was a recall due to it failing. The new kit moved the check valve to the hose attached to the brake booster on the other side of the engine bay.

Last edited by RLaoFD; Sep 4, 2025 at 03:23 PM.