2000 Crown Victoria, 150K
As the weather has heated up, I’ve developed an odd problem. My brake pedal creaks like an old cellar door when I push down on it. It doesn’t affect braking power at all, but it’s getting loud enough to annoy.
I tried soaking the pedal pivot joint with white lithium grease, but that didn’t help. I’m reasonably certain it’s coming from where the pushrod enters the brake booster. Is there a bushing of some sort in there that I can get to and soak with the grease? There’s a foam covering over the pushrod where it passes through the firewall; how about soaking that?
Perhaps the creaking is from the power brake booster, no amount of soaking will stop that and a creaking booster should not be soaked with anything to get it to stop creaking, it could stop boosting. I guess I just want to careful with brake components that make noise and find out why they are making the noise before applying a potentialy harmful chemical (to the booster). It seems you have already “hit” the pivot points which are safe to lube up.
Yes, my thoughts exactly. I have no idea what effect a lubricant will have on the booster, which is why I’m asking BEFORE trying. A noise I can live with; brake weakness or failure, not so much.