i had the small brake line that attachess to the caliper replaced a week ago when i broke down going to carlisle. because of the overheating the pad squeek so i did....
took the tire and caliper and rotor off
lightly sanded the pads and rotor
the squeek stoped but right away the pedal went to the floor. it feels like a clasic air in the lines but no leaks, i never broke a seal etc. could there have been air in the lines from before and the air settled in a diff spot in the line causing this to occur. note...the pedal after the line replacement was not as firm as before.

IT TURNS OUT THERE WAS AIR IN THE LINES. i purchased a hand held bleeder pump, worked great. cause was the dealer that fixed the line did not tighten the bleeder valve/fitting causing air to get pulled in. my guess is when i took out the pads the relase of brake fluid pessure caused allot of air to be pulled in.

mark v

mark v

|UPDATED|9/13/2004 1:02:55 PM (AZT)|/UPDATED|

If you haven't tried bleeding, I suggest that as a first step. Was the whole system bled after you replaced the line?
Next step would be to check the flex lines to make sure they are in good condition. If they have some age on them, it's a good idea to go ahead and replace them while you're in the brakes anyway. Bad flex lines can give a "spongy" pedal.

Those rubber lines can look great on the outside but be nothing but mush and plugged tight on the inside.I was in the middle of replacing my rubber lines yesterday,getting ready to take it to a car show today,threaded the new hose into the left side junction block,started to tighten it down,and the threaded end of the block were it sticks through the frame mount just broke off.just ordered 2 new junction blocks and front to rear,and rear crossover lines.figured what the h--- may as well replace everything.whats another $100.00 in the money pit

dave12's response was causing page display issues. Here's a more displayable version:

h--- may as well replace everything.whats another $100.00 in the money pit

A hundred bucks? I'm still a couple grand from getting mine done! Soft top weatherstriping, switch here, widget there. I just hope when all is done, or close to done, it'll be worth close to what I have in it.

Worth what you have in it? Have you gone daft man? You know better! I hope to come close to that, but I do all my own work. I figure a few more decades and I'll be done!

And yes, bleed them again. Sounds like air.

Worth what you have in it?

ROFL

Sounds like air in the lines. A good bleeding might fix the problem...

But it does sound strange that you didn't open any of the lines when you worked on it and yet the pedal (coincidentally) goes to the floor. Hope there isn't something else going on here.

OK, so maybe I was drinking a wee bit too much when I made that comment!
I guess it's a moot point anyway, I'm not planning on selling it. I just hope the finances hold out long enough to get her done! Lots of cash to spend before she goes on the road. Weatherstrip, tires, soft top, that's a couple grand right there!
The only thing I haven't done myself is engine assembly, but it was done in my shop so I could watch, help, and learn.

I've spent a lot more than a hundred bucks on my 78 in the last 3 years too,it just seems like evry time I turn around and have to order something that magic number $100.00 comes up ,CORVETTE PART ? $100.00 please if it was a chevette it would cost $10.00 oh well thats the price we pay for owning the #1 sports car of all time