Front Brakes - Popping Noise
90lexus04 BRAKES 001 09-28-90 LS400Title FRONT BRAKE POPPING NOISE
To reduce the front brake popping noise, the following two modifications have been made in production.
1. The shape of the pad support plate No. 2 has been modified as shown below, and a new adhesive has been applied.
2. The shaded portion of the disc brake cylinder mounting has been ground for better holding of the pad support plate No. 2.
PRODUCTION EFFECTIVE:
From VIN Production Date
JT8UF11##L0026697 March, 1990
PART NUMBER INFORMATION:
REPAIR (INSTALLATION) PROCEDURE:
^ When you install the pad support plate, make sure to clean the portion of the disc brake cylinder mounting (machined area) where the pad support plate is installed.
^ When installing the caliper slide pin dust boots, refer to LS400 repair manual Volume 1 page BR-24.
INTERCHANGEABILITY:
^ Replace the above parts as a set of mounting disc brake cylinder and pad support plate No. 2 or mounting disc brake cylinder and front brake pad kit.
NOTE: The new pad kit also contains the new inner and outer pad support plates No. 2.