Suspension - Inoperative Level Control System
Group Ref.: Steering SuspensionBulletin No.: 333403
Date: November, 1993
SUBJECT:
INOPERATIVE AUTOMATIC LEVEL CONTROL SYSTEM - RPO G67 - (REPLACE TUBE)
MODELS:
1994 BUICK ROADMASTER
1994 CADILLAC FLEETWOOD (RWD)
CONDITION:
Some owners may comment that cars equipped with the Automatic Level Control System (RPO G67) and assembled prior to VIN breakpoints indicated below, may have an inoperative system due to a perforated air supply tube in the area of the left upper control arm.
VIN BREAKPOINTS
Buick RR400324
Cadillac RR701257
CAUSE:
Early production routing of the air compressor supply tube to the rear shock absorbers may result in chafing/perforation of the tube assembly due to contact with an edge of the left upper control arm.
CORRECTION:
Splice in a new section of supply tube from air compressor to area on frame rail just rearward of left front wheel well opening following procedures and illustration.
SERVICE PROCEDURE:
1. Raise vehicle.
2. Remove left front air dam/wheel well filler panel located directly below air compressor.
3. Disconnect air compressor supply tube at compressor and cut at location "C" rearward of left front wheel well as shown in illustration.
4. Remove tube and locating clips from point where tube was cut intentionally forward to the compressor and discard tube.
5. Install new tube assembly, P/N 10005354, from compressor to area rearward of wheel well opening, routing tube assembly as shown in illustration.
NOTE:
Insure new tube assembly is routed inboard of frame control arm mounting bracket and below upper control arm.
6. Install clip(s), P/N 4553268, and secure tube to ABS module bracket as shown in illustration View A.
7. Position new tube adjacent to existing tube leading from rear of vehicle and cut to length.
8. Connect the tubes together utilizing union, P/N 10005238, and fitting, P/N 3176207, and secure to brake pipe(s) with a tie strap.
9. Install air dam/wheel well filler panel and lower vehicle.
PART AVAILABILITY:
Parts are currently available from GMSPO.
WARRANTY INFORMATION:
Labor Operation: T3400
Labor Time: 0.5 Hr.