HVAC BLOWER MOTOR NOISE (INSTALL INERTIA DISC KIT). Cadillac Eldorado 1994

SUBJECT: HVAC BLOWER MOTOR NOISE (INSTALL INERTIA DISC SERVICE KIT)

MODELS: 1994 CADILLAC ELDORADO, DEVILLE, CONCOURS AND SEVILLE

CONDITION:

SOME OWNERS MAY COMMENT ON A BLOWER MOTOR WHINE NOISE THAT VARIES IN FREQUENCY AS MOTOR SPEED CHANGES THIS NOISE SHOULD NOT BE CONFUSED WITH NORMAL AIR RUSH NOISE WHICH ALSO CAN BE HEARD AND VARIES IN INTENSITY AS MOTOR SPEED CHANGES

CAUSE:

THE WHINE NOISE IS INDUCED BY THE MOTOR-CREATED TORQUE, AMPLIFIED BY THE FAN MOTOR MOUNTING AND VEHICLE STRUCTURE

CORRECTION:

TO REPAIR THIS CONDITION, INSTALL INERTIA DISC SERVICE KIT, P/N 22137062 (SEE ILLUSTRATION)

REMOVE -

1 ELECTRICAL CONNECTOR AT BLOWER MOTOR

2 THREE (3) SCREW AND WASHER ASSEMBLIES, ONE AT A TIME, FROM COVER ASSEMBLY AND DISCARD

IMPORTANT! DO NOT PUSH INWARD WHEN REMOVING THE LAST SCREW OR THE MOTOR COULD BE PUSHED OUT OF THE COVER ASSEMBLY

INSTALL -

1 FIRMLY HOLD INERTIA PLATE IN POSITION

2 HAND TIGHTEN NEW SCREW AND WASHER ASSEMBLIES

3 TIGHTEN FASTENERS TO 7 N M (62 LBS IN )

4 ELECTRICAL CONNECTOR AT BLOWER MOTOR

NOTE: ASSURE SPARK PLUG WIRES ARE ROUTED A MINIMUM OF 25MM (1 INCH) FROM THE MOTOR EXTERIOR SURFACE FAILURE TO DO SO MAY RESULT IN PREMATURE MOTOR FAILURE

PARTS ARE EXPECTED TO BE AVAILABLE ON FEBRUARY 28, 1994

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: T3425 LABOR TIME: 0 4

FIGURES: 1

Object Number: 85164 Size: FS

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