hollerbone
New Member
Hi guys I am new to the lexus community, just purchased a 1991 LS400
Runs good, but I am questioning what these vacuum lines are supposed to go? They are just plugged with bolts and I was wondering what their function is? I have a spongy brake petal and I don't know if it is vacuum related or they just need bled, any help would be greatly appreciated. (not pic of my engine, just pointing out what hoses I am pointing out.
![plugline.jpg plugline.jpg](https://www.lextreme.com/forums/data/attachments/17/17976-c58f71da40ebc03dc708d0331f428b6f.jpg?hash=xY9x2kDrwD)
Runs good, but I am questioning what these vacuum lines are supposed to go? They are just plugged with bolts and I was wondering what their function is? I have a spongy brake petal and I don't know if it is vacuum related or they just need bled, any help would be greatly appreciated. (not pic of my engine, just pointing out what hoses I am pointing out.
![plugline.jpg plugline.jpg](https://www.lextreme.com/forums/data/attachments/17/17976-c58f71da40ebc03dc708d0331f428b6f.jpg?hash=xY9x2kDrwD)