2001 S80 brake pedal

[Padraig]

....has developed a hissing noise. Obviously vacuum. Brakes work fine.

Is this apt to be a bad brake booster or just a loose fitting?

 

[James Sweet]

...has developed a hissing noise. Obviously vacuum. Brakes work fine.

Is this apt to be a bad brake booster or just a loose fitting?

Almost certainly a bad booster.

 

[Padraig]

Almost certainly a bad booster.

Thanks. I was hoping it'd be something simple.

 

[James Sweet]

Thanks. I was hoping it'd be something simple.

It is simple, just not particularly cheap