CAMPAIGN:BRAKE ROTORY HUB FATIGUE. Chevrolet Export Express 1998

For 1990-2009 cars

# CAMPAIGN:BRAKE ROTORY HUB FATIGUE

#### NOTE: GM Canada version is below U.S. version

*************** U.S. Version

PRODUCT SAFETY CAMPAIGN

#### SUBJECT: 98009 - BRAKE ROTOR/HUB FATIGUE

#### MODELS: 1998 CHEVROLET AND GMC C TRUCKS AND G VANS

The Highway Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.

If the condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation.

To avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment with each customer and to repair their vehicle as soon as possible. As you will see in reading the attached copy of the divisional letter that is being sent to customers, the customers are being instructed to contact the appropriate Customer Assistance Center if their dealer does not remedy the condition within five (5) days of the mutually agreed upon service date. If the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic Safety Administration.

DEFECT INVOLVED

General Motors has decided that a defect which relates to motor vehicle safety exists in certain 1998 C trucks and G vans. These vehicles may have been built with either one or both front brake rotor/hubs having out-of-specification gray iron that could fatigue during the life of the vehicle. Over time, the forces on one of these substandard brake rotors during severe cornering could induce stress cracks. A cracked rotor may manifest itself to the driver as loose steering response. If a driver continued to drive with a cracked rotor, the cracks could propagate around the wheel mounting bolt circle, and ultimately result in a wheel separation and vehicle crash without prior warning.

To prevent the possibility of this condition occurring, dealers are to inspect the rotors for a core date of "287",and if found, replace the rotor.

VEHICLES INVOLVED

Involved are certain 1998 C trucks and G vans built within the following VIN breakpoints:

PLANT YEAR DIVISION MODEL PLANT CODE FROM THROUGH

1998 Chevrolet G Van Wentzville "1" W1029686 W1030074 1998 Chevrolet Suburban/ Janesville "J" WJ340822 WJ341712 4-Dr. Utility 1998 Chevrolet C Ext. Cab Oshawa "1" W1149032 W1151063 1998 Chevrolet C Pickup Ft. Wayne "Z" WZ150122 WZ151449 1998 Chevrolet C Pickup Pontiac East "E" WE129180 WE131054 1998 GMC G Van Wentzville "1" W1029846 W1030316 1998 GMC Suburban/ Janesville "J" WJ718335 WJ718742 4-Dr. Utility 1998 GMC C Ext. Cab Oshawa "1" W1517342 W1517870 1998 GMC C Pickup Fort Wayne "Z" WZ517235 WZ517640 1998 GMC C Pickup Pontiac East "E" WE512891 WE513484

#### IMPORTANT: Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) or ServiceNet (GMC only) prior to beginning campaign repairs. [Not all vehicles within the above breakpoints may be involved]

Involved vehicles have been identified by Vehicle Identification Number. Computer listings containing the complete Vehicle Identification Number, customer name and address data have been prepared,and are being furnished to involved dealers with the campaign bulletin. The customer name and address data furnished will enable dealers to follow-up with customers involved in this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

These dealer listings may contain customer 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 the follow-up necessary to complete this campaign.

PARTS INFORMATION

Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). Please refer to your "involved vehicles listing" prior to ordering requirements. Normal orders should be placed on a DRO = Daily Replenishment Order. An emergency requirement should be ordered on a CSO = Customer Special Order.

Part Quantity/ Number Description Vehicle

15981316 Brake Rotor - 1/2 Ton 1 or 2 (If Required) 15691951 Brake Rotor - 3/4 Ton 1 or 2 (If Required) 15651660 Inner Bearing Seal 1 or 2 (If Required) 12337997 Cotter Pin 1 or 2 (If Required) 1051344 Lubricant 4oz./Rotor (If Required)

#### Important: It is estimated that between all Chevrolet's and GMC's involved, only 1,000 vehicles will require replacement of part number 15981316; and only 9 vehicles will require replacement of part number 15691951. Please order parts accordingly.

CUSTOMER NOTIFICATION

Customers will be notified of this campaign on their vehicles by General Motors (see copy of typical customer letter included with this bulletin - actual divisional letter may vary slightly).

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 customers take possession of these vehicles.

Dealers are to service all vehicles subject to this campaign at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing to such customers a copy of the appropriate divisional customer letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.

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.

SERVICE PROCEDURE

1. Raise the vehicle and support with suitable safety stands.

2. Inspect the inboard side of the hub/rotors for the cast-in 3 digit core date. The core date is located on a rough cast ring just inside of the hub/rotor inner diameter (refer to Figure 1) that can be seen through either of two openings in the splash shield. One opening is at the bottom of the shield next to the ball joint, and the other is adjacent to the brake caliper.

3. If the core date is "287", replace the hub/rotor following the service procedure described in the applicable service manual.

4. If the core date is not "287" or has no date, the hub/rotor does not require replacement.

5. Remove safety stands and lower the vehicle.

6. If the vehicle required replacement of rotor(s), road test the vehicle to verify proper brake operation.

7. Install the GM Campaign Identification Label.

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 the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a 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 by the customer for periodic servicing. When installing the Campaign Identification Label, be sure to pull the tab to allow adhesion of the clear protective covering. Additional Campaign Identification Labels can be obtained from VISPAC Incorporated by calling 1-800-269-5100 (Monday-Friday, 8:00 a.m. to 4:30 p.m. EST). Ask for Item Number S-1015 when ordering.

Apply the "Campaign Identification Label" only on a clean, dry surface.

CLAIM INFORMATION

Submit a Product Campaign Claim with the information indicated below:

* ** REPAIR PART FAILED PARTS LABOR LABOR NET PERFORMED COUNT PART NO. ALLOW CC-FC 0P HOURS ITEM

Inspect Rotors Only, --- --- ** MA-96 V0138 0.3 --- No Further Action Required

Inspect Rotors And 3 --- ** MA-96 V0139 0.9 $1.86 Replace One Rotor

Inspect Rotors And 6 --- ** MA-96 V0140 1.2 $3.72 Replace Both Rotors

* For Campaign Administrative Allowance, add 0.1 hours to the "Labor Hours".

** The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 40% for brake rotors, if required, needed to complete the repair.

*** The amount identified in the "Net Item" column represents the sum total of the Current GMSPO Dealer Net Price plus 40% for lubricant needed to perform the required repairs.

Refer to the General Motors Corporation Claims Processing Manual for details on Product Campaign Claim Submission.

February, 1998

Dear Chevrolet/GMC Customer:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

Reason For This Recall: General Motors has decided that a defect which relates to motor vehicle safety exists in certain 1998 C trucks and G vans. These vehicles may have been built with either one or both front brake rotor/hubs having out-of- specification gray iron that could fatigue during the life of the vehicle. Over time, the forces on one of these substandard brake rotors, during severe cornering, could induce stress cracks. A cracked rotor may manifest itself to the driver as loose steering response. If a driver continued to drive with a cracked rotor, the cracks could propagate around the wheel mounting bolt circle, and ultimately result in a wheel separation and vehicle crash without prior warning.

What Will Be Done: To prevent the possibility of this condition occurring, your Chevrolet/GMC dealer will inspect your rotors for a core date of "287", and if found,replace the rotor. This service will be performed for you at no charge.

How Long Will The Repair Take? The length of time required to perform this inspection is approximately 20 minutes, and if required, and additional 40 - 55 minutes for the service correction. Additional time may be required to schedule and process your vehicle. If your dealer has a large number of vehicles awaiting service, this additional time may be significant. Please ask your dealer if you wish to know how much additional time will be needed.

Contacting Your Dealer: Please contact your dealer as soon as possible to arrange a service date. Parts are available and instructions for making this correction have been sent to your dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process and repair your vehicle. Your Chevrolet/GMC dealer is best equipped to obtain parts and provide services to correct your vehicle as promptly as possible. Should your dealer be unable to schedule a service date within a reasonable time, you should contact the appropriate Customer Assistance/Relations Center at the listed number below:

Deaf, Hearing Impaired Division Number or Speech Impaired *

Chevrolet 1-800-222-1020 1-800-833-2438 GMC 1-800-462-8782 1-800-462-8583

* Utilizes Telecommunication Devices for the Deaf/Text Telephones (TDD/TTY)

If, after contacting the appropriate Customer Assistance Center, you are still not satisfied that we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W. Washington, D.C. 20590 or call 1-800-424-9393 (Washington D.C. residents use 202-366-0123).

Customer Reply Card: The enclosed customer reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction in the shortest possible time. If you no longer own this vehicle, please let us know by completing the postage paid reply card and returning it to us.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your safety and continued satisfaction with our products.

Chevrolet/Pontiac-GMC Division GENERAL MOTORS CORPORATION

************************************************************************* ************************** GM Canada Version ************************** *************************************************************************

PRODUCT CAMPAIGNS 98009 FEBRUARY 1998

PRODUCT RECALL CAMPAIGN

PRODUCT SAFETY CAMPAIGN

#### SUBJECT: CAMPAIGN 98009 BRAKE ROTOR/HUB FATIGUE

#### MODELS: 1998 CHEVROLET AND GMC C TRUCKS AND G VANS

DEFECT INVOLVED

GENERAL MOTORS OF CANADA LIMITED HAS DECIDED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN CERTAIN 1998 C TRUCKS AND G VANS. THESE VEHICLES MAY HAVE BEEN BUILT WITH EITHER ONE OR BOTH FRONT BRAKE ROTOR/HUBS HAVING OUT-OF-SPECIFICATION GREY IRON THAT COULD FATIGUE DURING THE LIFE OF THE VEHICLE. OVER TIME, THE FORCES ON ONE OF THESE SUBSTANDARD BRAKE ROTORS DURING SEVERE CORNERING COULD INDUCE STRESS CRACKS. A CRACKED ROTOR MAY MANIFEST ITSELF TO THE DRIVER AS LOOSE STEERING RESPONSE. IF A DRIVER CONTINUED TO DRIVE WITH A CRACKED ROTOR, THE CRACKS COULD PROPAGATE AROUND THE WHEEL MOUNTING BOLT CIRCLE, AND ULTIMATELY RESULT IN A WHEEL SEPARATION AND VEHICLE CRASH WITHOUT PRIOR WARNING.

TO PREVENT THE POSSIBILITY OF THIS CONDITION OCCURRING, DEALERS ARE TO INSPECT THE ROTORS FOR A CORE DATE OF "0 287 0", AND IF FOUND, REPLACE THE ROTOR.

VEHICLES INVOLVED

INVOLVED ARE CERTAIN 1998 C TRUCKS AND G VANS BUILT WITHIN THE FOLLOWING VIN BREAKPOINTS:

YEAR DIVISION MODEL PLANT CODE FROM THROUGH

1998 CHEVROLET G VAN WENTZVILLE "1" W1029686 W1030074 1998 CHEVROLET SUBURBAN/ 4-DR. UTILITY JANESVILLE "J" WJ340822 WJ341712 1998 CHEVROLET C EXT. CAB OSHAWA "1" W1149032 W1151063 1998 CHEVROLET C PICKUP FT. WAYNE "Z" WZ150122 WZ151500 1998 CHEVROLET C PICKUP PONTIAC EAST "E" WE129180 WE131054 1998 GMC G VAN WENTZVILLE "1" W1029846 W1030316 1998 GMC SUBURBAN/ 4-DR. UTILITY JANESVILLE "J" WJ718335 WJ718742 1998 GMC C EXT. CAB OSHAWA "1" W1517342 W1517870 1998 GMC C PICKUP FORT WAYNE "Z" WZ517235 WZ517640 1998 GMC C PICKUP PONTIAC EAST "E" WE512891 WE513484

#### NOTE: PLEASE CHECK DCS SCREEN 445 OR YOUR V.I.N. LISTING BEFORE PERFORMING CAMPAIGN TO ENSURE THAT THE VEHICLE IS AFFECTED. ONLY AFFECTED VIN'S WILL BE PAID.

INVOLVED VEHICLES HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER. COMPUTER LISTINGS CONTAINING THE COMPLETE VEHICLE IDENTIFICATION NUMBER, CUSTOMER NAME AND ADDRESS DATA HAVE BEEN PREPARED, AND ARE BEING FURNISHED TO INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN. THE CUSTOMER NAME AND ADDRESS DATA FURNISHED WILL ENABLE DEALERS TO FOLLOW-UP WITH CUSTOMERS INVOLVED IN THIS CAMPAIGN. ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN HAS NO INVOLVED VEHICLES CURRENTLY ASSIGNED.

THESE DEALER LISTINGS MAY CONTAIN CUSTOMER NAMES AND ADDRESSES OBTAINED FROM THE INTER-PROVINCIAL RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHER PURPOSE IS A VIOLATION OF PROVINCIAL LAWS. ACCORDINGLY, YOU ARE URGED TO LIMIT THE USE OF THIS LISTING TO THE FOLLOW-UP NECESSARY TO COMPLETE THIS CAMPAIGN.

PARTS INFORMATION

PARTS REQUIRED TO COMPLETE THIS CAMPAIGN ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). PLEASE REFER TO YOUR "INVOLVED VEHICLES LISTING" PRIOR TO ORDERING REQUIREMENTS.

PART NUMBER DESCRIPTION QUANTITY/VEHICLE

15981316 BRAKE ROTOR - 1/2 TON 1 OR 2 (IF REQUIRED)

15651660 INNER BEARING SEAL 1 OR 2 (IF REQUIRED)

12337997 COTTER PIN 1 OR 2 (IF REQUIRED)

993037 LUBRICANT 120ML (4 OZ.) PER ROTOR (IF REQUIRED)

CUSTOMER NOTIFICATION

ALL CUSTOMERS OF RECORD AT THE TIME OF CAMPAIGN RELEASE ARE SHOWN ON THE ATTACHED COMPUTER LISTING AND HAVE BEEN NOTIFIED BY FIRST CLASS MAIL FROM GENERAL MOTORS (SEE COPY OF CUSTOMER LETTER INCLUDED WITH THIS BULLETIN).

DEALER CAMPAIGN RESPONSIBILITY

ALL UNSOLD NEW VEHICLES IN DEALER'S POSSESSION AND SUBJECT TO THIS CAMPAIGN MUST BE HELD AND INSPECTED/REPAIRED PER THE SERVICE PROCEDURE OF THIS CAMPAIGN BULLETIN BEFORE CUSTOMERS TAKE POSSESSION OF THESE VEHICLES.

DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO CUSTOMERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD.

CUSTOMERS WHO HAVE RECENTLY PURCHASED VEHICLES SOLD FROM YOUR VEHICLE INVENTORY, AND FOR WHICH THERE IS NO CUSTOMER INFORMATION INDICATED ON THE DEALER LISTING, ARE TO BE CONTACTED BY THE DEALER. ARRANGEMENTS ARE TO BE MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. THIS COULD BE DONE BY MAILING TO SUCH CUSTOMERS A COPY OF THE APPROPRIATE CUSTOMER LETTER ACCOMPANYING 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, YOU MUST TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE SELLING OR RELEASING THE VEHICLE.

SERVICE PROCEDURE

1. RAISE THE VEHICLE AND SUPPORT WITH SUITABLE SAFETY STANDS.

2. INSPECT THE INBOARD SIDE OF THE HUB/ROTORS FOR THE CAST-IN 5 DIGIT CORE DATE. THE CORE DATE IS LOCATED ON A ROUGH CAST RING JUST INSIDE OF THE HUB/ROTOR INNER DIAMETER (REFER TO FIGURE 1) THAT CAN BE SEEN THROUGH EITHER OF TWO OPENINGS IN THE SPLASH SHIELD. ONE OPENING IS AT THE BOTTOM OF THE SHIELD NEXT TO THE BALL JOINT, AND THE OTHER IS ADJACENT TO THE BRAKE CALIPER.

3. IF THE CORE DATE IS "287", REPLACE THE HUB/ROTOR FOLLOWING THE SERVICE PROCEDURE DESCRIBED IN THE APPLICABLE SERVICE MANUAL.

4. IF THE CORE DATE IS NOT "287", OR HAS NO DATE, THE HUB/ROTOR DOES NOT REQUIRE REPLACEMENT.

5. REMOVE SAFETY STANDS AND LOWER THE VEHICLE.

6. INSTALL CAMPAIGN IDENTIFICATION LABEL.

FIGURE 1

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 THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR A BALL POINT PEN.

INSERT CAMPAIGN NUMBER

INSERT DEALER CODE

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 BY THE CUSTOMER FOR PERIODIC SERVICING. ADDITIONAL CAMPAIGN IDENTIFICATION LABELS CAN BE OBTAINED FROM DGN BY CALLING 1-800-668-5539 (MONDAY-FRIDAY, 8:00 A.M. TO 5:00 P.M. EST). ASK FOR ITEM NUMBER GMP 91 WHEN ORDERING.

APPLY THE "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN, DRY SURFACE.

CLAIM INFORMATION

SUBMIT A PRODUCT CAMPAIGN CLAIM WITH THE INFORMATION INDICATED BELOW:

PART FAILED PARTS LABOR LABOR NET REPAIR PERFORMED COUNT PART NO. ALLOW CC-FC OP * HOURS ITEM

INSPECT ROTORS ONLY NO FURTHER ACTION REQUIRED --- ** MA-96 V0138 0.3 ---

INSPECT ROTORS AND REPLACE ONE ROTOR 3 --- ** MA-96 V0139 0.9 $2.00

INSPECT ROTORS AND REPLACE BOTH ROTORS 6 --- ** MA-96 V0140 1.2 $4.00

* FOR CAMPAIGN ADMINISTRATIVE ALLOWANCE, ADD 0.1 HOURS TO THE "LABOUR HOURS".

** THE "PARTS ALLOWANCE" SHOULD BE THE SUM TOTAL OF THE CURRENT GMSPO DEALER NET PRICE PLUS 40% FOR BRAKE ROTORS, IF REQUIRED, NEEDED TO COMPLETE THE REPAIR.

*** THE AMOUNT IDENTIFIED IN THE "NET ITEM" COLUMN REPRESENTS THE SUM TOTAL OF THE CURRENT GMSPO DEALER NET PRICE PLUS 40% FOR LUBRICANT NEEDED TO PERFORM THE REQUIRED REPAIRS.

REFER TO THE GENERAL MOTORS CLAIMS PROCESSING MANUAL FOR DETAILS ON PRODUCT CAMPAIGN CLAIM SUBMISSION.

FIGURES: 1

GM BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THESE 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 TOOLS, EQUIPMENT, 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 YOUR DEALER/RETAILER FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION. M WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

COPYRIGHT 1998 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.