Brakes - Front Brake Judder

Classification:
BR09-005

Reference:
ITB10-009

Date:
January 20, 2010

EX35; BRAKE JUDDER

APPLIED VEHICLE:
2008-2010 EX35 (J50)

APPLIED VINS:
2008-2009 EX35 - ALL
2010 EX35 2WD - vehicles built before JN1AJ0HP(*)AM700678
2010 EX35 AWD - vehicles built before JH1AJ0HR(*)AM751942

APPLIED DATES:
ALL vehicles built before October 15, 2009

IF YOU CONFIRM:

While braking especially when braking at highway speeds:

^ the steering wheel shakes and/or

^ the body vibrates and/or

^ the brake pedal pulsates (also known as "Brake Judder").

IMPORTANT NOTES:

^ If the incident occurs when cruising or coasting (not braking) it is not "Brake Judder" and may be tire/wheel related. Refer to ASIST for further diagnostic assistance.

^ DO NOT CONFUSE Brake Judder with the rapid consistent-speed pedal pulsation that may be felt and only occurs when ABS is activated during hard braking or on slippery road surfaces. In contrast the pedal pulsation of Brake Judder may occur with light to moderate braking experienced during normal driving conditions and the pulsation rate will vary (faster or slower) with vehicle speed.

^ The purpose of ACTIONS (below) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

ACTIONS:

1. Remove the front brake calipers and rotors.

2. Install the new front brake splash guard assemblies (backing plates).

3. Inspect the front brake rotors to determine if resurfacing is possible or if replacement is necessary.

4. Reinstall the front brake calipers.

5. Inspect the brake pads and caliper hardware and replace only as necessary.





PARTS INFORMATION

CLAIMS INFORMATION





Submit a Primary Part (PP) type line claim using the claims coding shown.

SERVICE PROCEDURE

1. Remove one front brake caliper assembly and rotor.

^ Refer to the BR section in the applicable Electronic Service Manual (ESM) for removal information.

2. Install the new backing plate listed in the PARTS INFORMATION section.

3. Inspect the front brake rotor (rotor) to determine if rotor resurfacing is possible or if replacement is necessary.

^ Refer to the ESM for rotor inspection information.

^ If rotor resurfacing is possible make sure to use the ProCut PFM Series on-car brake lathe.

^ If necessary replace both rotors with the new rotor listed in the Parts Information section.

> Do not replace only one rotor.

4. Reinstall the brake caliper assembly.

5. Inspect the front brake pads and front brake caliper hardware.

^ Replace each as needed only.

> Refer to the ESM for brake pad and hardware inspection if needed.

^ For P/Ns refer to the PARTS INFORMATION section.

^ Refer to the ESM for repair procedure if needed.

6. Perform Step 1-5 on the other front brake assembly.





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