Questions & Answers for: Lexus LS 400 booster

transmissdion when brakes are appiled the reverse light on dash light and rpms jump up? leaky break booster ,air line valve ect.for rev problem

...Jump Starting 92 LS400. Radio & More Wont Work The wife jump started 1992 LS400 with a battery booster. Positive and negative cables were backwards. She says that a little smoke arose and she ...

I crank the car it goes to the floor and I have no brakes. check the vacum lines going to the brake booster. if everything is connected properly you may need a new booster

brake booster is leaking, how envolved is it to replace. Trivial. If it is vacuum that is leaking I assume. (If it is fluid, then it is actually the master cylinder and not the booster that is leaking

carwillnotidlecorrectly my cars idle keeps going up and down from 1000 rpms to 1800 rpms maybe a vacuum line has a hole or is off completely. it could be a brake booster even.