INTERFER. BTWN FRNT BRK ANCHOR PLATES & STEERING KNUCKLE
NUMBER: 92-C-13 DATE: OCTOBER 1992
GROUP: 5 - BRAKES
SUBJECT: INTERFERENCE BETWEEN THE FRONT BRAKE ANCHOR PLATES AND THE STEERING KNUCKLE
MODELS: 1991-92 C7H TOPKICK/KODIAK MODELS WITH HYDRAULIC BRAKES (JE3 AND 11000/12000 LB (5000/5455 KG) FRONT AXLES (FL2/FS7)
GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1991-92 C7H TOPKICK/KODIAK MODELS EQUIPPED WITH HYDRAULIC BRAKES (JE3) AND 11000/12000 LB (5000/5455 KG) FRONT AXLES (FL2/FS7) MAY HAVE BEEN BUILT WITH AN INTERFERENCE CONDITION BETWEEN ONE OR BOTH OF THE FRONT BRAKE ANCHOR PLATES AND THE STEERING KNUCKLE. THE INTERFERENCE CONDITION COULD RESULT IN SOME LOSS OF TORQUE ON THE MOUNTING BOLTS, BUT WITH NO LOSS OF FUNCTION.
TO CORRECT THIS CONDITION, DEALERS WILL INSPECT BOTH FRONT BRAKE ANCHOR PLATES FOR AN INTERFERENCE CONDITION AND REPLACE AS REQUIRED.
VEHICLES INVOLVED
INVOLVED ARE CERTAIN 1991-92 C7H TOPKICK/KODIAK MODELS EQUIPPED WITH HYDRAULIC BRAKES (JE3) AND 11000/12000 LB (5000/5455 KG) FRONT AXLES (FL2/FS7) AND BUILT WITHIN THE FOLLOWING VIN BREAKPOINTS:
MODEL YEAR MODEL FROM THROUGH
1991 TOPKICK MJ517149 MJ523062 1991 KODIAK MJ108662 MJ112299
1992 TOPKICK NJ500011 NJ502039 1992 KODIAK NJ100009 NJ101356
THE SPECIFIC VEHICLES INVOLVED IN THIS CAMPAIGN HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS. THESE LISTINGS ARE FURNISHED TO ALL INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN.
DEALER CAMPAIGN RESPONSIBILITY
ALL UNSOLD NEW VEHICLES IN DEALERS' POSSESSION AND SUBJECT TO THIS CAMPAIGN MUST BE HELD AND INSPECTED/REPAIRED PER THE SERVICE PROCEDURE OF THIS CAMPAIGN BULLETIN BEFORE OWNERS TAKE POSSESSION OF THESE VEHICLES.
DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD.
OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY ARE TO BE CONTACTED BY THE DEALER AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO INSTRUCTIONS CONTAINED IN THIS BULLETIN.
IN SUMMARY, WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN ENTERS YOUR VEHICLE INVENTORY, OR IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, PLEASE TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE SELLING OR RELEASING THE VEHICLE.
IF THE NAME AND ADDRESS OF THE OWNER OF AN INVOLVED VEHICLE WAS UNAVAILABLE TO GMC TRUCK DIVISION AT THE TIME OF CAMPAIGN INITIATION, THE DEALER MUST DETERMINE THE OWNER'S NAME AND ADDRESS FROM THE DEALERSHIP SALES RECORDS. PLEASE PROVIDE THIS INFORMATION DIRECTLY ON THE SECOND COPY OF THE LISTING NEXT TO THE APPLICABLE VIN SO THAT OUR RECORDS MAY BE UPDATED AND THE APPROPRIATE NOTIFICATION MAILED TO THE OWNER. THIS SECOND COPY SHOULD THEN BE SUBMITTED TO THE ADDRESS LISTED BELOW IN THE PREVIOUSLY SUPPLIED YELLOW CAMPAIGN ENVELOPES.
GMC TRUCK DIVISION GENERAL MOTORS CORPORATION 101 UNION STREET PLYMOUTH, MICHIGAN 48170
OWNER NOTIFICATION
OWNERS WILL BE NOTIFIED OF THIS CAMPAIGN ON THEIR VEHICLES BY GMC TRUCK DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS BULLETIN). A LISTING OF OWNER NAMES AND ADDRESSES HAS BEEN FURNISHED TO THE INVOLVED DEALERS TO ENABLE DEALERS TO FOLLOW UP WITH OWNERS INVOLVED IN THIS CAMPAIGN. THIS LISTING MAY CONTAIN OWNER NAMES AND ADDRESSES OBTAINED FROM STATE MOTOR VEHICLE REGISTRATION RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHER PURPOSE IS A VIOLATION OF LAW IN SEVERAL STATES. ACCORDINGLY, YOU ARE URGED TO LIMIT THE USE OF THIS LISTING TO THIS CAMPAIGN.
SERVICE PROCEDURE
A. INSPECTION
1. PREPARE THE VEHICLE BY ENGAGING THE PARKING BRAKE AND BLOCKING ALL THE WHEELS. THE FRONT WHEELS SHOULD BE IN THE STRAIGHT POSITION.
2. CHECK THE FRONT BRAKE ANCHOR PLATE FOR SCALLOPING AS ILLUSTRATED IN FIGURE 1. THE CORRECT ANCHOR PLATE WILL ALLOW INSERTION OF A 1/8 IN. DRILL BIT OR A SIMILAR TEST INSTRUMENT BETWEEN THE ANCHOR PLATE AND THE STEERING KNUCKLE. THE INCORRECT ANCHOR PLATE IS UNSCALLOPED (FIGURE 2).
3. REPEAT THE INSPECTION FOR THE OPPOSITE SIDE FRONT ANCHOR PLATE.
4. IF BOTH ANCHOR PLATES ARE FOUND TO BE CORRECT, INSTALL THE "CAMPAIGN IDENTIFICATION LABEL". IF ONE OR BOTH ANCHOR PLATES ARE FOUND TO BE INCORRECT, CONTINUE ON TO PART B.
B. REPLACEMENT PROCEDURE
1. REPLACE THE ANCHOR PLATE(S) FOLLOWING THE ANCHOR PLACE REPLACEMENT PROCEDURE FOUND IN THE 1991 MEDIUM DUTY SERVICE MANUAL (X-9133 PAGE 5A2-12) OR THE 1992 MEDIUM DUTY SERVICE MANUAL (X-9233 PAGE 5A2-11).
2. INSTALL THE "CAMPAIGN IDENTIFICATION LABEL"
PARTS INFORMATION
PARTS ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO). TO ENSURE THAT THESE PARTS WILL BE OBTAINED AS SOON AS POSSIBLE, THEY SHOULD BE ORDERED FROM GMSPO ON A C.I.O. ORDER WITH NO SPECIAL INSTRUCTION CODE BUT ORDER UNDER AN ADVISE CODE (2).
PART NUMBER DESCRIPTION QUANTITY
15673235 LEFT-HAND ANCHOR PLATE 1 15673236 RIGHT-HAND ANCHOR PLATE 1
WARRANTY INFORMATION
DEALERS SHOULD SUBMIT A WARRANTY CLAIM ON EACH VEHICLE COMPLETED UNDER THIS CAMPAIGN.
LABOR OPERATION *TIME TROUBLE NUMBER DESCRIPTION ALLOWANCE CODE
V7580 INSPECT BOTH ANCHOR PLATES 0.2 96
V7581 INSPECT BOTH ANCHOR PLATES 1.1 96 AND REPLACE ONE ANCHOR PLATE
V7582 INSPECT BOTH ANCHOR PLATES 2.0 96 AND REPLACE BOTH ANCHOR PLATES
*FOR DEALER TO RECEIVE ADMINISTRATIVE TIME ALLOWANCE ASSOCIATED WITH THIS CAMPAIGN, ADD 0.1 HOUR TO THE LABOR OPERATION TIME ALLOWANCE.
CAMPAIGN IDENTIFICATION LABEL
EACH VEHICLE CORRECTED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL." EACH LABEL PROVIDES A SPACE TO INCLUDE THE CAMPAIGN NUMBER AND FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALL POINT PEN.
EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.
APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN, DRY SURFACE.
ADMINISTRATIVE PROCEDURE
PROCEDURES COVERING THIS CAMPAIGN ARE OUTLINED IN SECTION V OF YOUR DEALERSHIP'S "GM TRUCK CLAIMS PROCESSING MANUAL" #P9119. ------------------------------------------------------------- DEAR GM TRUCK OWNER:
OUR RECORDS SHOW THAT YOU OWN ONE OF OUR NEW 1991 OR 1992 MODEL GENERAL MOTORS TOPKICK/KODIAK MEDIUM TRUCKS. THE RATE AT WHICH THESE TRUCKS HAVE BEEN ACCEPTED INTO THE STREAM OF COMMERCE HAS BEEN VERY GRATIFYING TO US. IN ADDITION, FEEDBACK FROM CUSTOMERS, DEALERS AND OUR OWN TRACKING SYSTEMS INDICATE A VERY HIGH DEGREE OF PRODUCT RELIABILITY THUS FAR.
WE HAVE RECENTLY BECOME AWARE OF A SITUATION ON CERTAIN 1991 AND 1992 TOPKICK/KODIAKS MODELS EQUIPPED WITH HYDRAULIC BRAKES AND 11000/12000 LB FRONT AXLES. THESE VEHICLES MAY HAVE BEEN BUILT WITH AN INTERFERENCE CONDITION BETWEEN ONE OR BOTH OF THE FRONT BRAKE ANCHOR PLATES AND THE STEERING KNUCKLES. THE INTERFERENCE CONDITION COULD RESULT IN SOME LOSS OF TORQUE ON THE MOUNTING FASTENERS, BUT NO LOSS OF FUNCTION.
TO CORRECT THIS CONDITION, DEALERS WILL INSPECT BOTH FRONT BRAKE ANCHOR PLATES FOR AN INTERFERENCE CONDITION AND REPLACE AS REQUIRED. THIS SERVICE WILL BE COMPLETED FOR YOU AT NO CHARGE.
INSTRUCTIONS FOR PERFORMING THIS SERVICE HAVE BEEN SENT TO YOUR GM TOPKICK/KODIAK DEALER. PLEASE CONTACT YOUR GM TOPKICK/KODIAK DEALER TO ARRANGE A SERVICE DATE. REFER TO YOUR GM TOPKICK/KODIAK SERVICING DEALERS BOOKLET FOR THE DEALER NEAREST YOU. THE LABOR TIME NECESSARY TO PERFORM THIS CORRECTION IS APPROXIMATELY 60 TO 90 MINUTES. PLEASE ASK YOUR DEALER HOW MUCH ADDITIONAL TIME WILL BE NEEDED TO PROCESS YOUR VEHICLE.
THE ENCLOSED POSTAGE PAID OWNER REPLY CARD IDENTIFIES YOUR VEHICLE. PRESENTATION OF THIS CARD TO YOUR GM TOPKICK/KODIAK DEALER WILL ASSIST IN MAKING THE NECESSARY CORRECTION TO YOUR VEHICLE IN THE SHORTEST POSSIBLE TIME. IF YOU HAVE SOLD OR TRADED YOUR VEHICLE, PLEASE FURNISH US COMPLETE NAME AND ADDRESS OF THE PERSON YOU SOLD OR TRADED YOUR VEHICLE TO AND RETURN THE CARD TO US.
WE ARE SORRY TO CAUSE YOU THIS INCONVENIENCE; HOWEVER, WE HAVE TAKEN THIS ACTION IN THE INTEREST OF YOUR CONTINUED SATISFACTION.
GMC TRUCK DIVISION GENERAL MOTORS CORPORATION 92C13 ENCLOSURE
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.
