help -- '97 brake pedal squeaks

[ancdmd]

I have an annoying squeak in my brakes, it squeaks when I am releasing the pedal. The noise comes from the plunger going into the booster, not the linkage on the pedal ( I lubed it to no avail). It can be heard from outside the car and inside. Any ideas on what it is and how to fix it?

[CJ Otey]

try spraying wd40 on it

[ancdmd]

Did that, doesn't do anything.

[zoni]

is the fluid really old?? how about a flush?

[keithy]

Does the sound originated from the inside or outside of the car?
I have similar problem, but the squeal was coming from the brake drums in the rear. The squeal occurs consistently every time I release the break pedal. I have not looked at it yet, but I believe something needs to be lubricated, or simply the brake shoe needs to be replaced.

[zoni]

^thats totally different... have your breaks checked out.

[ancdmd]

the fluid is really old, could that be the problem?

[zoni]

yeah get it flushed and get new fluid in there. you may also want to replace the master cylinder... thats what i did one time when mine was squeaking. its fairly cheap. you can pretty much do all of this yourself too. as long as the brake booster isnt messed up somehow.

[Novice_cardude]

Like Keithy said, it depends where it's coming from. It could very well be a contaminated master cylinder, which would kinda suck...

The noise I was having is identical to Keithy's. Whenever I stopped, and took my foot off the brake, i'd get a slow squeal. It's the shoes, where they contact the brake backing plate, rear brakes. All I did was take off the drums, pry the shoes up just enough to put some anti-sieze where they were rubbing, and i'm good. I did that about a year ago and haven't heard a peep from them since.

[ancdmd]

The noise is definitely coming from the master cylinder area, that's most likely the problem, I'll have to have the shop look at it. Thanks for the help.