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My 1998 GS400 may require a new brake booster as a loud squeaking noise is becoming a regular occurrence when car is cold and brakes are applied. In warmer weather the noise disappears when the car is driven for a while. The brake booster and master cylinder are a single unit. Can anyone advise where such a new or rebuilt unit can be purchased. I understand that the units may be expensive and difficult to locate. I am located in Western New York and local distributors don't stock the item I am searching for.

MedicalDoc

Do you have any codes? Those things run 1000s of USD. I would try to diagnose well before leaping into it. Years ago they, indy mech. & stealership wanted this done. It turned out to be a caliper bolt plastic "grommet", $0.15 part. IAC, clean and grease calipers well. Good luck.

aletz12485

iTrader: (1)

Are you talking about the ABS unit thats part of the brake booster/master cylinder?

MedicalDoc

Here you go, aletz12485. I didn't know which one u needed. BTW, those prices do not include labor.

Electronic Brake Control Module:8954030392 $2489.10Vacuum Brake Booster:4707030060 $1676.50Brake Master Cylinder:4705030220 $3092.61

aletz12485

iTrader: (1)

I was asking the OP what part he was referring to. No way id pay that much for new oem parts.

MedicalDoc

Sorry about that. I guess I'm 'tirerer' than what I thought. I don't know if they have aftermarket parts or if u have to go to a junk yard and pull them. For example, I haven't found any aftermarket parts for our windows mpx.

jeffy

im sorry that i cant help, but i feel like i have heard about the possibility of a different part all together getting swapped in, in place of the uber expensive factory part. i think it was a non abs inclusive unit, so that might not be up your alley, but something to think about. cant remember where i heard about it, here or somewhere related to ls400 stuff.

jeffy

https://www.clublexus.com/forums/sus...nd-master.html

heavy compared to stock replacement but another option