Brake booster noise??

Did you ever get this problem resolved?Having the same issues and curious if seals fixed it.

 

Does anyone happen to know the orientation for the brake master cylinder and brake booster gaskets?

Paper gasket separates the master cylinder and the brake booster, it has writing on one side, not sure which side to face outward.


The other gasket goes between the brake booster and the firewall, not sure which way it faces either, any ideas? It’s same on both sides but there are tabs on one end and holes on the other, not sure if holes go on top or on bottom.

 

Thank you for describing the symptoms on this. Now i know what i am chasing.

 

@Glamisman. Do you have a part number for the seal between the master cylinder and brake booster? What i got from Toyota was not the right inside diameter.

 

See if this guy can help

call this guy, Steve is his name. best in the business.

Bush Power Brake
Address: 25 E 17th St A, National City, CA 91950

Phone: (619) 474-8906

 

Thank you @Glamisman

Spoke to Steve. Nice guy.

To hopefully help others i did call Toyota and they confirmed that this seal is NOT available thru them outside of the whole booster which is also NLA. Steve did indicate he probably had something but i went forward with a low mileage used booster with a good seal.

While my vacuum leak noise is gone my brakes are still soft like i have a leak. Sometimes the brakes are solid and sometimes soft where i have to pump a few times. Hmmm....

FWIW I did find alot of brake fluid in the old booster confirming where all my fluid went when my MC was leaking.