M/T - Clutch Chirping Noise in Neutral

TRANSMISSION & CLUTCH
TC003-03

Title:
CLUTCH "CHIRPING" NOISE IN
NEUTRAL WITH CLUTCH PEDAL
RELEASED

Models:
'02 - '03 IS 300

June 17, 2003

Introduction

Some 2002 - 2003 model year IS 300 vehicles equipped with manual transmissions may emit a cyclic high pitched noise ("chirp") when the transmission is in neutral, the engine is idling and the clutch pedal is not depressed. The noise is eliminated when clutch pedal is depressed a small amount. A revised clutch release cylinder assembly has been developed to eliminate the noise.

Applicable Vehicles

^ 2002 - 2003 model year IS 300 vehicles equipped with manual transmission produced BEFORE the Production Change Effective VIN shown below.





Production Change Information





Parts Information





Required Tools & Material





Warranty Information

Applicable Warranty *:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.

* Warranty application is limited to correction of a problem based upon a customer's specific complaint.

Repair Procedure

1. Confirm cyclic "chirp" noise only occurs when clutch pedal is not depressed and transmission is in neutral. If clutch pedal is lightly depressed 1/4" to 1/2" noise should end. If noise does not end refer to Technical Information System (TIS) Repair Manual for IS 300 - Manual Transmission and Clutch diagnosis.

2. Refer to Technical Information System (TIS) Repair Manual for IS 300; Clutch, Clutch Release Cylinder to remove and replace Clutch Release Cylinder Assembly.

3. Bleed the clutch system and confirm that the clutch pedal operation is within specifications.

4. Confirm proper operation of clutch system.

5. Confirm cyclic "chirp" noise is eliminated.