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Engine & Drivetrain VQ Power and Delivery

Vacuume Line Problems

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Old Apr 12, 2024 | 08:22 AM
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Carlso
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Default Vacuume Line Problems

i just got the car and the brake booster is getting no vacuum from the lines but the car is not running like there is a vacuum leak are these lines in the right spot and this is the furthest i can follow the line so if anyone knows what to do next.


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Old Apr 12, 2024 | 11:08 AM
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icer5160
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That routing looks wrong. The brake booster vacuum line should be running above the wire harness for starters. It should be going straight from intake manifold to the hardline at the false firewall. I have no idea what hose that is connected to the hardline running straight down towards the exhaust manifold. That is not correct. Perhaps I just can't see the hose circling back up, wire harness is blocking the view. But just looking at the hose, it looks like you have a coolant line connected there, not the factory hose which should have a 1-way check valve.


Factory routing for brake booster.




Last edited by icer5160; Apr 12, 2024 at 11:13 AM.
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Old Apr 12, 2024 | 11:41 AM
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Here's how it should look on Bank1 in stock form.
-Icer


Bank 1 - VQ35DE - stock harness and hose routing.
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