Canada - Brake - Brake Booster Check Valve, Noise
BulletinTSB2675
Issue Date
July 8, 2009
Title
BRAKE BOOSTER VACUUM CHECK VALVE RATTLE/BUZZ NOISE
Component
BRAKES
Models
'04-'06 RX330; '07-'10 RX350
INTRODUCTION:
Some RX 330/350 vehicles may exhibit a rattle or buzz type noise coming from the driver's side instrument panel area. The noise can be duplicated when lightly accelerating and then decelerating, or when depressing the brake pedal with the shift lever in Park and then releasing the brake pedal. An improved vacuum check valve is now available to reduce this noise.
APPLICABILITY:
WARRANTY INFORMATION:
PARTS INFORMATION:
REPAIR PROCEDURE:
1. Confirm the noise is coming from the brake booster vacuum check valve.
NOTE
Replace vacuum check valve with the same type as originally equipped (straight or 90°).
2. Remove the vacuum tube clip from the brake booster check valve.
3. Remove and replace the brake booster vacuum check valve.
NOTE
Make sure NEW valve is fully seated into brake booster grommet and returned to original condition.
4. Reconnect vacuum hose to the brake booster check valve and secure with clip.
5. Confirm that there are no vacuum leaks.
6. Confirm the noise has been eliminated.
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.