Brakes - Front End Rattle/Brake Squeal Issues
05-021June 18, 2010
Applies To:
2005-06 RL - See VEHICLES AFFECTED
Rattle From Front Suspension Area or Front Brakes Squeal At Low Speed (Supersedes 05-021, dated December 19, 2006, to revise the information marked with the black bars and asterisks)
*REVISION SUMMARY
Under WARRANTY CLAIM INFORMATION, the flat rate time was revised after the operation was reviewed and validated.*
SYMPTOM
While driving on rough roads, you may hear a rattle from the front suspension, or while braking at low speed, you may hear a squeal from the front brakes. The vehicle may have both symptoms.
PROBABLE CAUSE
Brake squeal: Improper brake pad and disc material.
Rattle: The brake pad pins rattle in the caliper.
VEHICLES AFFECTED
2005 RL
Brake squeal: From VIN JH4KB1 6..5C000001 thru JH4KB16..5C015259
Rattle: From VIN JH4KB16..5C000001 thru JH4KB16..5C020423
2006 RL
Brake squeal with or without rattle: From VIN
JH4KB16..6C000001 thru JH4KB16..6C006768
CORRECTIVE ACTION
For brake squeal with or without a rattle: Install and refinish the new front brake discs, install new brake pads and pad springs, and inspect the calipers, go to REPAIR PROCEDURE A.
For rattle only: Install new front brake pad springs, go to REPAIR PROCEDURE B.
PARTS INFORMATION
Front Brake Pad Set: P/N 45022-SJA-040
Front Brake Disc (2 required): P/N 45251 -SJA-903
Front Brake Pad Spring (2 required):
P/N 45227-SJA-013
Front Brake Caliper, left side: P/N 4501 9-SJA-A01
Front Brake Caliper, right side: P/N 45018-SJA-A01
REQUIRED MATERIALS
M-77 Assembly Paste: P/N 08798-9010
(One tube services three vehicles.)
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Failed Part: REPAIR PROCEDURE A:
P/N 45022-SJA-010
REPAIR PROCEDURE B:
P/N 45227-SJA-003
Defect Code: 01401
Symptom Code: 04212
Skill Level: Repair Technician
REPAIR PROCEDURE A
1. Remove the front brake calipers:
^ Refer to page 18-11 of the 2005-07 RL Service Manual or
^ Online, enter keyword HUB and select Knuckle/
Hub Replacement from the list.
2. Replace the brake discs with the part number listed under PARTS INFORMATION:
^ Refer to page 18-12 of the service manual, or
^ Online, enter keyword HUB and select Front
Knuckle/Hub Replacement from the list.
3. Refinish both new front brake discs with an on-car brake lathe. Use the approved Kwik-Way or Snap-on brake lathe. Do not refinish the front discs off of the vehicle because disc runout cannot be adequately eliminated by this method.
NOTE:
For information on brake disc refinishing, refer to the operating manual for the lathe and to service bulletin 00-037, Brake Disc Refinishing Guidelines.
4. Remove the front brake pads and inspect the front brake caliper pad stops. Replace any caliper with a pad stop clearance that exceeds 0.1 mm.
5. Install the new front brake pads and pad springs.
^ Refer to page 19-13 of the service manual, or
^ Online, enter keyword PAD and select Front Brake Pad Inspection and Replacement from the list.
REPAIR PROCEDURE B
1. Raise the vehicle on a lift, and remove the front wheels.
2. Turn and twist out the clip from the caliper hole, and pull the clip out from the pad pins.
3. Remove the pad pins and the pad spring.
4. Install the new pad spring. While holding the pad spring, insert the pad pins into the caliper from the outside.
5. Insert the clip ends into the pad pins, then twist the clip into the caliper hole to lock it.
6. Repeat steps 2 thru 5 on the other side.
7. Reinstall the front wheels, then test-drive the vehicle.