Rear Brake Pad Question

**2001NBMZ28** · 11-13-2006, 01:10 PM

This is on a friends 2K low mileage Z28. All of a sudden his pedal feels a little spongy, bought new pads cause he has over 1/4" space between the pads and rotors thinking they were worn, but the ones on there show hardly any wear at all (same on both rears). After hitting the brake a couple times the pads compress, then slowly release leaving the gap. Car has ASR and braided lines on it. No leaks and fluid level is correct. Fronts are fine. Any ideas what could be wrong? Only thing I can think of is trying to bleed them.

**Toes** · 11-13-2006, 01:17 PM

Air is in the system it needs to be bleed

**boostedlebaron** · 11-13-2006, 05:12 PM

does the idle go up when you step on the brake?

**2001NBMZ28** · 11-13-2006, 05:19 PM

Didn't look for/notice that, I'll ask him tomorrow AM and post.

**Y2KPewterSS** · 11-13-2006, 05:22 PM

Originally Posted by Toes

Air is in the system it needs to be bleed

Second this

**mrr23** · 11-13-2006, 06:39 PM

do a fluid flush. without the system being opened, air won't get in. but, the fluid is old. most likely a dark color, almost black dirt. brake fluid is a light brown almost see through. kinda like weak tea.

only other thing would be the master cylinder going bad.

**boostedlebaron** · 11-13-2006, 07:53 PM

Originally Posted by mrr23

do a fluid flush. without the system being opened, air won't get in. but, the fluid is old. most likely a dark color, almost black dirt. brake fluid is a light brown almost see through. kinda like weak tea.

only other thing would be the master cylinder going bad.

i second that. if you dont get a jumpy idle when stepping on the brake the fluid maybe bad and could have possibly rotted the cups in the master.