CAMPAIGN: A/C CONDENSER INLET PIPE FATIGUE

Models: 1989 "B" Cars W/ 5.7L (RPO L05) V8 Engine (SEO 9C1 Police Option) & 4.3L (RPO LB4) V6 Engine (SEO 9C6 Taxi Cab Option)

TO: ALL AFFECTED DEALERS:

General Motors of Canada has determined that certain 1989 Chevrolet Caprice police and taxi cab fleets may experience fatigue of the air conditioning condenser inlet pipe. The compressor discharge hose/pipe is too short and stiff to absorb engine roll and compressor vibration.

The fatigue resulting from this condition may lead to breakage of the inlet pipe, causing the discharge of the system's Freon and thus loss of vehicle air conditioning. To prevent the possibility of this condition occurring, dealers will install a new compressor discharge hose/pipe assembly and, if necessary, a new condenser.

VEHICLES INVOLVED:

Involved are certain Chevrolet Caprices equipped with 5.7L engines and police option equipment, or 4.3L engines and taxi cab option equipment. Models affected were built within the following VIN breakpoints:

Model/Year Plant From Through ---------- ----- ---- ------- B 1989 Lakewood KA100001 KA154651 (Police Opt.)

B 1989 Arlington KR100001 KR225904 (Police Opt.)

B 1989 Lakewood KA106665 KA159606 (Taxi opt.)

B 1989 Arlington KR115379 KR231679 (Taxi opt.)

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 INFORMATION:

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

Part Number Description Quantity/Vehicle ----------- ----------- ---------------- 10145106 Hose/Pipe Assembly, 1 A/C Condenser (L05)

10164836 Hose/Pipe Assembly, 1 A/C Condenser (LB4)

NPN Refrigerant-12 3.5 lbs. (30 lbs. can)

03037439 Condenser 1 (As Required)

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 ----------- ----------- --------------- 1A Inspect Hose/Pipe .3 Previously Installed

2A Replace Hose/Pipe Assembly .9 - 5.7L Engine (L05)

3A Replace Hose/Pipe Assembly, 2.0 A/C Condenser - 5.7L Engine (L05)

4A Replace Hose/Pipe Assembly .9 - 4.3L Engine (LB4)

5A Replace Hose/Pipe Assembly, 2.0 A/C Condenser - 4.3L Engine (LB4)

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.

An allowance of $11.85 is included in Repair Codes 2A, 3A, 4A and 5A for Freon.

SERVICE PROCEDURE:

1. Inspect for previously replaced hose assembly. Illustrations of old and new style hose/pipe assemblies are shown on next page. If hose/pipe assembly has been previously replaced, install Campaign Identification Label and return vehicle to the owner or to dealer stock. If hose/pipe assembly has not been previously replaced proceed with Steps 2 and 3.

2. Replace hose/pipe assembly referring to the Refrigerant Hose replacement procedure, Section 1B, pages 1B-41 through 1B-42 of the 1989 B Carline Service Manual.

NOTICE: Replace condenser as necessary referring to condenser replacement procedure, Section 1B, Page 1B-43 of the 1989 B Carline Service Manual.

3. 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 certain 1989 Chevrolet Caprice police and taxi cab fleets may experience fatigue of the air conditioning condenser inlet pipe. The compressor discharge hose/pipe is too short and stiff to absorb engine roll alid compressor vibration.

The fatigue resulting froin this condition may lead to breakage of the inlet pipe, causing the discharge of the system's Freon and thus loss of vehicle air conditioning.

To prevent the possibility of this condition occurring, your GM dealer will install a new compressor discharge hose/pipe assembly and, if necessary, a new condenser. This service will be performed at no charge to you.

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

Further assistance, if required, may be obtained from our Customer Assistance Centre, toll free, by calling 1-800-263-3777.

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.