I changed my brake pads today all the way around. I changed the wheel cylinders in the back because one was leaking. The brakes dont seem right tho. I tested them to see if they would lock and only the rears locked up, not the front. (i was only going about 20 mph) Also when Im going slow I can hear the front pads scraping on the "turned rotors". And when I apply my brakes its like I can hear a whinning/vacuum sounding noise coming from the front brakes, its slows down as the car slows......Whats up with all this?


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wishmister@yahoo.com

1987 White IROC-Z
305 TPI LB9
700-R4 auto tranny
87,000 miles
Very Clean car
Performance Resource Chip
Flowmaster Muffler
Throttle Body Coolant bypass
TPIS air Foil
K&N's
Gutted air box
Accel 8.0 plug wires
Moroso Super Coil
Blue Streak Cap and Rotor
AC Delco Rapidfire plugs
Mobil 1 15/50 Synthetic motor oil
Mobil 1 synthetic Trans fluid.

 

when you changed the back cylinders,,,did you bleed the brake lines ?? you might have air in them

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New website home
**The ****** at Anzwers.org deleted all of my files w/o notice**
- 4 out of 5 people think the 5th is an idiot

 

sounds to me like you need to bleed them, and have you had the rotors cut???
I hope this helps

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--G
92 RS 25th Aniv.
350 Goodwrench (NEW LO5)
700R4 Raptor: high performance intermediate billet servo,Mega Valve,13 vane high performance pump,1800 heavy-duty stall converter and a 29 element heavy-duty forward input sprag

 

Yes I bleed the brakes as a matter of fact I removed all the old fluid out of the master cylinder and refilled it with synthetic fluid and then used one of those "one man bleeders" to suck all the old fluid out of the lines until the new fluid came thru. Yes I had the rotors turned.
Do new brakes usually make noise until the seat? Let me know.

------------------
wishmister@yahoo.com

1987 White IROC-Z
305 TPI LB9
700-R4 auto tranny
87,000 miles
Very Clean car
Performance Resource Chip
Flowmaster Muffler
Throttle Body Coolant bypass
TPIS air Foil
K&N's
Gutted air box
Accel 8.0 plug wires
Moroso Super Coil
Blue Streak Cap and Rotor
AC Delco Rapidfire plugs
Mobil 1 15/50 Synthetic motor oil
Mobil 1 synthetic Trans fluid.

 

Have you checked the wheel bearing play after you re-packed 'em? Other than that, I think you're right, it's probably the front pads breaking in.

When you say you removed the old fluid from the master cylinder- you left the ports covered in old fluid, right? I'm just wondering if you introduced some kind of air into the m/c body.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
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