RIDE HEIGHT TOO LOW 7/OR AIR PUMP RUNS ALL THE TIME. Cadillac Seville 1998

SUBJECT: RIDE HEIGHT TOO LOW AND/OR AIR PUMP RUNS ALL THE TIME (GRIND EXCESS METAL FROM FLANGE AREA)

MODELS: 1998 CADILLAC DEVILLE COMMERCIAL CHASSIS

CONDITION:

SOME CUSTOMERS MAY COMMENT ABOUT THE RIDE HEIGHT BEING TOO LOW. THEY MAY ALSO NOTICE THAT THE AIR PUMP RUNS ALL THE TIME.

CAUSE:

THIS CONDITION MAY BE CAUSED BY THE AIR BOOT BEING PUNCTURED BY EXCESSIVE WELD MATERIAL AT THE SHOCK TOWER REINFORCEMENT.

CORRECTION:

GRIND EXCESS METAL FROM FLANGE AREA AROUND THE SHOCK'S AIR BOOT.

PROCEDURE:

1. RAISE AND SUPPORT THE VEHICLE.

2. REMOVE THE TIRE AND WHEEL.

3. REMOVE THE SHOCK.

4. USE A DIE GRINDER TO REMOVE THE FLANGE MATERIAL BEYOND THE WELD. BE CAREFUL NOT TO REMOVE ANY MORE FLANGE FLASH THAN NECESSARY. IT IS SUGGESTED THAT ALL RADIUS ARE 6.0 MM.

5. MAKE SURE TO LEAVE A SMOOTH SURFACE WITH NO SHARP CORNERS OR BURRS, WHERE GRINDING OPERATION WAS PERFORMED.

6. AFTER GRINDING OPERATION IS COMPLETE, USE AN ENAMEL PAINT, OR EQUIVALENT, TO COVER ALL BARE METAL THAT HAS BEEN EXPOSED.

7. INSTALL THE SHOCK. TIGHTEN UPPER NUT TO 75 N.M (55 LB FT) AND LOWER NUT AND BOLT TO 108 N.M (80 LB FT).

8. INSTALL TIRE AND WHEEL.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION LABOR OPERATION NUMBER DESCRIPTION TIME =============== ============================= ================

E5847 REAR SHOCK TOWER MODIFICATION 1.2 HR WELD FLANGE AREA (BOTH SIDES)

FIGURES: 01

ATTACHMENTS: 00

FIGURE 1 1. FLANGE AREA TO BE GRINDED.

Object Number: 336456 Size: SH

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.