CAMPAIGN: FAN BLADE REPLACEMENT. Chevrolet S10 Pickup

SUBJECT: FAN BLADE REPLACEMENT

Models: 1995 Chevrolet and GMC S/T Trucks with 4.3L Engines (VIN "Z" - RPO LB4) and (VIN "W" - RPO L35) with Air Conditioner (C60)

TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that a defect, which relates to motor vehicle safety, exists in CERTAIN 1995 Chevrolet and GMC S/T Pickup and Utility trucks equipped with air conditioning and 4.3L engines. Some of these vehicles may exhibit fan blade rivet breakage which could lead to fan blade separation from the spider. If this should occur while the hood is open, a person working under the hood of the vehicle or in the vicinity of the vehicle could be struck by the fan blade and injured.

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

VEHICLES INVOLVED:

Involved are CERTAIN 1995 Chevrolet and GMC S/T Pickups and Utilities equipped with air conditioning (C60) and 4.3L engines (LB4/L35) built within the following VIN breakpoints:

Year Model Plant Plant Code From Through

1995 Chevrolet S/T Truck Shreveport 8 S8119447 S8151095 1995 GMC S/T Truck Shreveport 8 S8504443 S8511838 1995 Chevrolet S/T Truck Moraine 2 S2100234 S2135046 1995 GMC S/T Truck Moraine 2 S2500198 S2512424 1995 Chevrolet S/T Truck Linden K SK127759 SK151952 1995 GMC S/T Truck Linden K SK507710 SK514880

NOTE: PLEASE CHECK DCS SCREEN 45 OR YOUR V.I.N. LISTING BEFORE PERFORMING CAMPAIGN TO ENSURE THAT THE VEHICLE IS AFFECTED. ONLY AFFECTED VIN'S WILL BE PAID.

All affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.

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 owners take possession of these vehicles.

Dealers are to perform this campaign on all involved vehicles at no charge to owners, regardless of kilometers traveled, 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 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 is taken into your new or used 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.

CAMPAIGN PROCEDURE:

Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.

OWNER NOTIFICATION:

All owners 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 owner letter included with this bulletin). The listings provided are for campaign activity only and should not be used for any other purpose.

PARTS INFORMATION:

Parts required to complete this campaign should be ordered through regular channels, as follows:

Part Number Description Quantity/Vehicle -------------------------------------------------------------------- 15717731 Fan Assembly 1

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:

Repair Code Description Time Allowance

1A Inspect Fan Blade Rivet Head - .3 No Further Action Required 2A Inspect and R & R Fan Blade Assembly .9

Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Parts credit will be based on dealer net plus 40% to cover parts handling.

SERVICE PROCEDURE:

INSPECTION

1. Inspect one of the fan blade rivet heads for stamping J94 or K94 (rivet heads will all be stamped with the same number).

- If either J94 or K94 is on the rivet head, the fan must be replaced. Proceed to Step 1, below.

- If the rivet head does NOT show J94 or K94, install the Campaign Identification Label. No further action is required.

REPLACEMENT

1. Remove upper fan shroud.

2. Remove fan nuts.

3. Remove fan and clutch assembly.

4. Remove fan blade from fan clutch assembly.

5. Install new fan blade to fan clutch assembly and torque fan nuts to 33 N.m (24 lbs. ft.).

6. Install fan and clutch to the pulley.

7. Install fan nuts and torque to 24 N.m (17 lbs. ft.).

8. Install upper fan shroud.

9. Install Campaign Identification Label.

INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL

Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.

Dear General Motors Customer:

To correct this condition, your GM dealer will inspect and replace, if necessary, the existing fan with the current release fan having thicker headed rivets.

This service will be provided for you at no charge.

Please contact your GM dealer as soon as possible to arrange a service date.

If parts are required, ask your dealer for details regarding their availability. If parts are not in stock, they can be ordered before scheduling your service date.

This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.

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

Customer Support Department General Motors of Canada Limited

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.