Rattle When I Release The Brake...

[mike2002]

it just came out of no where. if im driving and i get on the brake from medium to heavy, when i LIFT my foot i hear a rattle. not a creak, but a rattle. from the left side, front. it sounds like from inside the car, but i know its not

also, if i hit the brakes hard when im already stopped (you know, like those punks who do gas-brake-gas.....i get the rattle when HITTING the brake, but normally only comes when lifting my foot off the brake

i did a quick search, and couldn't find anything

01 gls btw.

my 2003 did the same thing, but then it got worse, i took it to the dealer and had them fix it under warranty, they said that it was a combo of my master cylinder, power break booster, and driver's side rotor, all being bad.

i cant remember if those are the symptoms of the piston inside the caliper......they were having trouble with the lubrication aspect of it.......there was not a recall but a notice or something of some special lubrication and that you put on it........

i remember it being when the pedal was depressed and it was definately noticable at a stand still........

you might wanna give that a shot........

[mike2002]

i dont want this to be expensive! lol.....anyone else have this happen?

dude did you not read what i wrote......the lube is probably less than 10 bucks.......and yes people have had this problem, there was a notice about it.......

[brsexton]

Here is the TSB for the brake creak issue.........


Brake Noise/Creak During Slow Speed Braking (Lubricate Brake Caliper)
1999-2003 Chevrolet Malibu

2004 Chevrolet Malibu Classic

1999-2004 Oldsmobile Alero

1999-2004 Pontiac Grand Am

Condition
Some customers may comment on a creak type noise occurring when applying the brakes. It is usually heard only during slow speed brake maneuvers. If this condition exists, it should be able to be duplicated when the vehicle is not moving by depressing the brake and listening for the noise from the wheel-well/caliper area.

Cause
This condition may be caused by a caliper piston to seal interface issue during brake apply. If the caliper is removed and the piston is pushed back, the noise may be eliminated. This is usually only a temporary fix.

Correction
DO NOT REPLACE CALIPER.

To repair this condition, lubricate the entire circumference of the seal at the caliper piston interface using Kluber Fluid and the following procedure:

Remove the wheel and reinstall two lug nuts. This will hold the rotor to the bearing surface so debris does not fall between the surfaces and cause lateral runout (LRO).
Remove the bottom bolt from the caliper assembly without disturbing the hydraulic system.



Swing the caliper assembly up so the caliper assembly is facing upward.
Thoroughly clean the piston boot with GM approved Brake Clean. Pay particular attention to the area where the boot interfaces with the piston.
Using compressed air, dry the piston/boot area.



Remove the cap from the tip of the bottle and carefully insert the tip, P/N 89022161, between the boot and piston, inward of the piston boot groove.
From the top side of the piston (reference diagram), inject the lubricant. With the caliper in the tilted position, the lubricant will flow down and work its way around the entire circumference of the seal. Let the caliper body assembly remain in this position for a minimum of 2 minutes to allow for the fluid to completely work its way around the seal.
Push the piston into the seal to ensure the lubricant is on both the piston and seal surface.

Important
Excessive fluid could appear as a failure and lead to a comeback. To prevent unnecessary future repairs, it is important to only use one bottle per side and make sure excess fluid is wiped away.


Wipe away any excessive fluid.
Reassemble the caliper to the vehicle. Tighten
Tighten the caliper bolts to 31N·m(23 lb ft).

Repeat steps 1- 9 on the opposite side of the vehicle, if necessary.
Pump the brake pedal to push the caliper piston back into place.
Reinstall the wheel and test drive the vehicle to verify repair.
Parts Information
Part Number
Description

89022161
Service Kit -- Kluber Fluid



Important
The service kit will consist of a "one--time use only" bottle which will service one caliper.


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

H9702
Brake Caliper -- Lubricate (One Side)
0.3 hr

H9703
Brake Caliper -- Lubricate (Both Sides)
0.6 hr




GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

[mike2002]

thanks....ill go to the dealer monday and get this crap, see if it works. reason im not sure, is mine only does it when im releasing my foot from the brake, and i cant re-create the sound when the cars in park, but i can if its in D idleing and i pump the brake as the car rolls