I went back to Firestone tonight, because after they installed my new tires, and did the alignment, I am experiencing squeaking noise from the rear when braking at slow speed. So, the guy took apart the rear tires, and pointed out to me that I have some rust on the inner circle of rotor. On the other hand, I asked him about if that could be caused by alginment they did, because they did align my Z back to factory spec. Now, while he was telling me how he tweaked the alignment, he said that he can only work with the toe in, because both front and rear camber are not adjustable. Ok, I'm not understanding this statement. The rear camber number is still out of the specified range from the factory spec?!! So, my question is would the readjusted alignment affected my brake? Here are the numbers after the alignment, hope this is not too hard to read:

Camber: LF / RF / Spec
-0.82 / -1.10 / -1.33 to 0.17
Caster:
7.63 / 7.91 / 7.42 to 8.92
Toe:
0.03 / 0.04 / 0.00 to 0.10

Camber: LR / RR / Spec
-0.83 / -0.81 / -2.08 to -1.08
Toe:
0.03 / 0.03 / 0.01 to 0.09

 

Ow, my head.

 

omg. same thing is happeneing with my car. i got new back tires and my brakes squeal when i break at slow speeds too. i thought i just needed new brake pads. guess ill take it to the les schuab soon.

 

No, give it a few more Miles.. they are just wearing in! The sound will go away.

 

Make sure the wheels were torqued to the right spec. These guys have a tendacy to over torque the wheels which warps the rotor causes this problem.
Yeah after some more miles the sound may go away. However, it may have warped your rotors and your braking will start to feel modulated because of it.

The wheels should be cross torqued at 80ft lbs. per owners manual page 6-6.

 

I have a 35th anniv. with squeaky brake pads. If you replace the pads, make sure that your pads have NAO linings (non-asbestos organic). Nissan was supposed to replace the old asbestos linings beginning with a Bulletin posted back in 1995, but ¿who know's? other than them if that was complied with. I don't use my brakes (Brembos) very often because I use the gears, and dust and rust etc. accumulate on the disks causing the squeak. As far as I remember, wheel alignment and brake squeaking have little to do with one another. A steady squeak when doing light/slow speed braking indicates that your disc is not warped and it could be caused by what has accumulated on it.

 

just replace those pads if they ever squeak...pads are so inexpensive and easy to replace. i prefer oem pads cuz they are easier on the rotors.

 

Thanks everyone. I only have 83k miles on it and the car is still under warranty. I'll take it into Nissan to have them check it out.

 

Inexpensive, I assume you're not talking brembo pads, unfortunately they are not cheap.