rrgrassi

I have experienced this with GM vehicles without external leaking. Where the seals for the externals did not fail. but the internal ones did. No air in the system, and no dropping fluid level either. Talk about chasing your tail!

NJTman

Well, that explains everything....


I had a 84 vette, and nothing was good on that junker. Everything failed except for the engine. Fuel system, electric, suspension, seals, gaskets, steering..... you name it .... it failed.

That's what you get for owning a piece of american history...

rrgrassi

So true. A Wagner M/C fixed that problem on an old Pontiac I had. I will not ever buy a '74 or higher GM car, or a 79 or higher GM truck.

GMC=General Mechanical Crap or Garage Man's Companion

bigragu

Update- upon removal of the brake booster the rod end that connects to the pedal falls out with pieces of something torn at the end of the rod. I am wondering when I was pumping the brakes trying to bleed out the air I felt/ heard this pop at the brake pedal and after that I could not hold any pressure at all and that's when I quit. Been following all the bleeding advice on here and the pressure would build up then fade away at start up. Booster fell apart as I exchanged it with another reman from orileys. According to my notes, That one lasted about a year

maybe368

I can't imagine what could be at the pedal end, it just connects to the pedal with a clip. I know that most rebuilt boosters, or mc's, (can't remember which ) come with instruction on how to adjust the push rod and that this has been an issue. I still don't see how a bad booster can put air into the brake lines, that is probably the mc...Mark