CAMPAIGN: DISTRIBUTOR VACUUM VENT HARNESS ROUTING

SUBJECT: DISTRIBUTOR VACUUM VENT HARNESS ROUTING

Models: 1995 Chevrolet Corvettes

TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that CERTAIN 1995 Chevrolet Corvettes equipped with 5.7L engines (RPO LT1 - VIN Code "P") were built with a distributor vacuum vent harness assembly which may come in contact with the power steering pulley. Contact with the pulley may cause the harness to wear through and could eventually result in a distributor failure.

To correct this condition, it is necessary to tie strap the harness to the throttle body coolant hose to prevent contact with the pulley.

VEHICLES INVOLVED:

Involved are CERTAIN 1995 Chevrolet Corvettes equipped with 5.7L engines (VIN Code "P") and built within the following VIN breakpoints:

Year Model Plant Plant Code From Through

1995 Corvette Bowling Green 5 S5112566 S5114608

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 within 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

12337820 Tie Strap 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

2A Inspect and Repair, If Necessary .3

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

SERVICE PROCEDURE:

1. Inspect the distributor vacuum vent harness assembly for the part number identification label. The identification label is located on the clean air supply hose of the harness where it is attached to the air intake duct via a plastic elbow connector.

CAUTION:

Care should be taken as coolant hoses and engine components in this area may be hot.

If the identification label is marked with part number 12553223, no further action is required. Proceed to Step 4.

If the identification label is marked with part number 12554393, proceed to Step 2.

2. Attach tie strap part number 12337820 to restrain the vacuum supply hose to the throttle body coolant line. (See Figure 1)

Care must be taken to assure the hose does not come in contact with the power steering pump pulley, or is kinked at any location.

3. Cut off any excess material from the tie strap.

4. 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

General Motors of Canada Limited has determined that CERTAIN 1995 Chevrolet Corvettes were shipped with a distributor vacuum vent harness assembly that may contact the power steering pulley. If the pulley rubs against the harness, it may cause the harness to wear through and could eventually lead to a distributor failure.

To prevent this condition from occurring, your dealer will inspect and repair the harness assembly, if necessary, and assure that the harness will not come in contact with the pulley.

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.