CAMPAIGN: ENGINE COMPARTMENT A/C WIRING HARNESS INSPECTION

Models: 1988 Chevrolet Caprice Equipped With Police Car Option (SEO 9C1), 5.7L (RPO LM1, VIN Code 6) And Heater Only (RPO C41)

General Motors has determined that a defect which relates to motor vehicle safety may exist in certain 1988 Chevrolet Caprice model vehicles equipped with police car option, 5.7L engine and heater only option. The unused air conditioning (A/C) wiring harness connector may not be properly secured. This condition could allow the connector to contact the exhaust manifold where it could melt and/or short out and cause an engine compartment fire. Such a fire could, in time, spread to the passenger compartment.

To correct this condition, the unused A/C wiring harness connector is to be removed and the remaining wiring properly secured.

VEHICLES INVOLVED:

Involved are certain 1988 Chevrolet Caprice model vehicles equipped with police car option, 5.7L engine and heater only option, produced within the following VIN breakpoints:

PLANT FROM THROUGH -------- ----- -------- Lakewood SOP EOP Arlington SOP EOP

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:

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.

Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your Dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.

Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the Dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.

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. The listings provided are for campaign activity only and should not be used for any other purpose.

PARTS AND LABOUR CLAIM INFORMATION:

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

Repair Code Description Time Allowance ----------- --------------------------- -------------- 2A Remove unused A/C Connector .3

Time allowance includes 0.1 hour for Dealer administrative detail associated with this campaign. Parts credit will be based on Dealer net plus 30% to cover parts handling.

SERVICE PROCEDURE:

1. Disconnect negative battery cable.

NOTICE: Red wire to A/C harness connector is connected directly to battery through a fusible link. Failure to disconnect negative battery cable could lead to electrical shock.

2. Cut unused A/C connector off (see illustration). 3. Tape each wire end thoroughly with electrical tape to insure that no bare wire is exposed. 4. Insert wires into conduit and tape conduit shut. 5. Reconnect negative battery cable. 6. 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 has determined that a defect which relates to motor vehicle safety may exist in certain 1988 Chevrolet Caprice model vehicles equipped with police car option, 5.7L engine and heater only option. The unused air conditioning (A/C) wiring harness connector may not be properly secured. This condition could allow the connector to contact the exhaust manifold where it could melt and/or short out and cause an engine compartment fire. Such a fire could, in time, spread to the passenger compartment.

To correct this condition, the unused A/C wiring harness connector is to be removed and the remaining wiring properly secured. This service will be performed for you at no charge.

Please contact your GM Dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your Dealer. The labour time necessary to perform this service is approximately ten (10) minutes. Please ask your Dealer if you wish to know how much additional time will be needed to schedule and process your vehicle.

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.

Further assistance, if required, may be obtained from the General Motors Zone Office nearest you. Your vehicle Owner's Manual provides the location and phone number of each respective Zone Office.

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

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.