CAMPAIGN: ENGINE COOLING FAN REPLACEMENT. GMC Truck GMC P RV/Van/Commercial Chassis 1996

SUBJECT: ENGINE COOLING FAN REPLACEMENT

MODELS: 1996 P TRUCKS WITH 6.5L DIESEL ENGINES (VIN "Y" - RPO L57) AND 7.4L GAS ENGINES (VIN "J" - RPO L29)

The National Traffic and Motor Vehicle 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 owner has tendered it for repair. A failure to adequately repair within 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 owner 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 solutions, every effort must be made to promptly schedule appointments with owners and to repair their vehicles as soon as possible. As you will see in reading the attached copy of the letter which is being sent to owners, the owner is being instructed to contact the GMC Truck Division Consumer Relations Office if the dealer does not remedy the condition within five days of the mutually agreed upon service date. If the condition is not remedied within a reasonable time, they are instructed 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 1996 P trucks equipped with 6.5L diesel engines and 7.4L gas engines. Some of these vehicles have engine cooling fan assemblies that could exhibit breakage as a result of fatigue caused by engine and/or vehicle induced stresses. If this occurred while the hood or engine compartment was open, a person in the vicinity of the engine could be struck by a fan segment and injured.

To correct this condition, dealers will replace the existing engine cooling fan with the current release fan having larger headed rivets.

VEHICLES INVOLVED

All vehicles involved in this recall are listed below.

Assigned Ship To Dealer Dealer VIN ------------------------------------------------------ 48-21559 48-54624 1GDKP32Y9T3500018 48-42066 48-54688 1GDKP32Y0T3500019 1GDKP32Y4T3500024 1GDKP32Y8T3500026 1GDKP32Y3T3500029 1GDKP32Y5T3500033

The specific vehicles involved in this campaign have been identified by Vehicle Identification Number (VIN) Computer Listings. These listings are furnished to all involved dealers with the campaign. Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) or SERVICENET prior to beginning campaign repairs.

DEALER CAMPAIGN RESPONSIBILITY

All unsold 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 with no owner information indicated on the dealer listing, are to be contacted by the dealer, and arrangements made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing to such owners a copy of the owner letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the owner 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.

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 have been notified by GM via telephone and have been requested to hold these units until they are repaired.

SERVICE PROCEDURE

1. Prep vehicle.

2. Remove fan clutch nuts.

3. Remove fan and the fan clutch from the coolant pump pulley.

4. Remove fan clutch bolts.

5. Remove fan from the fan clutch and discard fan.

6. Install new fan to the fan clutch.

7. Install fan clutch bolts to 27 Nm (20 lb. ft.).

8. Install fan and the fan clutch to the coolant pump pulley.

9. Install fan clutch nuts to 27 Nm (20 lb. ft.).

10. Install Campaign Identification Label.

PARTS INFORMATION

Parts required for this campaign will be preshipped to involved dealers of record. Parts received for recently transferred vehicles should be forwarded by the original dealer (with an accompanying phone call) to the dealer that received the transferred vehicle.

Part Number Description Quantity

15734247 Fan Assembly 1

WARRANTY INFORMATION

Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.

***DO NOT SUBMIT CLAIMS UNTIL THE WEEK OF JANUARY 22,1996.***

Failed Labor *Labor **Net Description Part CC FC Op Hrs Item ---------------------------------------------------------------------- 6.5L Diesel - *** MA 96 V9888 0.7 $7.20 Replace Fan Blade 4.L Gas Engine - *** MA 96 V9889 0.6 $7.20 Replace Fan Blade

* For Campaign Administrative Allowance associated with this campaign, add 0.1 hour to the "Labor Hours".

** The amount identified in the "Net Item" column represents 40% of dealer net for parts that are furnished in this campaign.

*** Parts shipped to dealer no charge - Parts Column is to be "blank".

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 must be inserted with a typewriter or ball point pen. This label is to be used in conjunction with the clear protective plastic cover provided with the Campaign Identification Labels.

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.

Additional Campaign Identification Labels and covers are available in sheets of 49 by calling VISPAC, Incorporated at 1-800-269-5100 (Monday through Friday 8:00 AM to 4:30 PM EST).

ADMINISTRATIVE PROCEDURE

Procedures covering this campaign are outlined in Section IV of your dealership's "WINS Claims Processing Manual".

Dear GMC Truck Customer:

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

To correct this condition, dealers will replace the existing fan with the current release fan having thicker headed rivets.

Instructions for performing this service have been sent to your GMC Truck dealer. Please contact your dealer to arrange a service date. The labor time necessary to perform this correction will be approximately 40 minutes and parts are available. Please ask your dealer how much additional time will be needed to process your vehicle.

Your GMC Truck dealer is best equipped to provide service to ensure your vehicle is corrected as promptly as possible. However, if you take your vehicle to your dealer on the agreed service date and they do not service this condition on that date or within five days, we recommend you contact GMC Truck Consumer Relations by telephone. Consumer Relations will assist you and your dealer in getting your vehicle corrected. The telephone number of the Consumer Relations office is listed in your Warranty and Owner Assistance Information Manual.

After contacting your GMC Truck dealer and GMC Truck Consumer Relations, if you are still not satisfied that we have done our best to remedy this condition without charge 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 800-424-9393 (Washington, D.C. residents use 202-366-0123).

The enclosed postage paid owner reply card identifies your vehicle. Presentation of this card to your 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 safety and continued satisfaction with our product.

GMC TRUCK DIVISION General Motors Corporation

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.