For 1990-2009 cars

# CAMPAIGN: TRANSAXLE COOLER LINE SEPARATION (CANADA ONLY)

#### SUBJECT: UPPER TRANSAXLE OIL COOLER LINE SEPARATION

REVISED TO INCLUDE ALL PROVINCES

#### Models: 1991-1993 Buick Park Avenue, Oldsmobile Ninety-Eight and FWD Cadillac DeVille/Fleetwood/Sixty Special 1992-1993 Buick LeSabre, Oldsmobile Eighty-Eight and Pontiac Bonneville

#### TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that a defect which relates to motor vehicle safety exists in certain 1991-1993 Buick Park Avenue, Oldsmobile Ninety-Eight and FWD Cadillac DeVille/Fleetwood/Sixty Special and 1992-1993 Buick LeSabre, Oldsmobile Eighty-Eight and Pontiac Bonneville model vehicles. These vehicles have an upper transaxle oil cooler hose which could pull out of the crimped coupling at the transaxle end of the line assembly. Under certain climatic conditions and under certain driving conditions, if this coupling were to separate and an ignition source were present, an engine compartment fire could occur.

To prevent this condition from occurring, dealers are to install a new upper transaxle oil cooler line (to transaxle) on all involved vehicles.

#### VEHICLES INVOLVED:

Involved are certain 1991-1993 Buick Park Avenue, Oldsmobile Ninety-Eight and FWD Cadillac DeVille/Fleetwood/Sixty Special and 1992-1993 Buick LeSabre, Oldsmobile Eighty-Eight and Pontiac Bonneville model vehicles.

Plant Beginning Ending Year Model Plant Code VIN VIN ---------------------------------------------------------------------------- 1991 Cadillac DeVille/Fleetwood Orion 4 SOP EOP /Sixty Special 1991 Buick Park Avenue Wentzville 1 SOP EOP 1991 Oldsmobile Ninety-Eight Orion 4 SOP EOP 1992 Pontiac Bonneville Wentzville 1 SOP EOP 1992 Buick LeSabre Buick City H SOP EOP 1992 Oldsmobile Eighty-Eight Buick City H SOP EOP 1992 Oldsmobile Eighty-Eight Wentzville 1 SOP EOP 1992 Cadillac DeVille/Fleetwood Orion 4 SOP EOP /Sixty Special 1992 Buick Park Avenue Wentzville 1 SOP EOP 1992 Oldsmobile Ninety-Eight Orion 4 SOP EOP 1993 Pontiac Bonneville Wentzville 1 SOP EOP 1993 Buick LeSabre Buick City H SOP EOP 1993 Oldsmobile Eighty-Eight Buick City H SOP EOP 1993 Oldsmobile Eighty-Eight Wentzville 1 SOP EOP 1993 Cadillac DeVille/Fleetwood Orion 4 SOP EOP /Sixty Special 1993 Buick Park Avenue Wentzville 1 SOP EOP 1993 Oldsmobile Ninety-Eight Orion 4 SOP EOP

#### 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 -------------------------------------------------------------------------- 25625874 Pipe, Transaxle Fill Cooler-Upper 1

or

25623916*

22527587 Clamp 2

Dexron (R) IIE As Required

#### NOTICE: PART NUMBER 25623916 WILL ONLY BE NEEDED ON A VERY SMALL NUMBER OF VEHICLES AND SHOULD NOT BE STOCKED, BUT ORDERED WHEN NEEDED.

#### 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

6A Replace Upper Transaxle Oil Cooler Line (To Transaxle) .4

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. Remove upper transaxle oil cooler hose clamp(s) and hose. See callout (A) on illustration. If no hose clamp(s) are on-line, refer to notice below:

#### NOTICE: A SMALL QUANTITY OF 1992 AND 1993 VEHICLES WERE BUILT WITH A ONE-PIECE TRANSAXLE OEL COOLER LINE [NO HOSE CLAMPS]. ON THESE VEHICLES IT WILL BE NECESSARY TO REPLACE THE COMPLETE LINE WITH PART NUMBER 2S623916. PIPE TO RADIATOR TORQUE WHEN INSTALLING A ONE-PIECE LINE IS 27N.m (20 LB. FT.). FOLLOW STEPS 2, 3, AND 4 WITH PART NUMBER 25623916 SUBSTITUTED, THEN STEPS 5, 8, AND 9 TO COMPLETE THE CAMPAIGN ON THESE VEHICLES. RETAINERS/CLAMP WILL ALSO REQUIRE REMOVAL AND REINSTALLATION WHEN REPLACING A ONE-PIECE LINE.

2. Disconnect upper transaxle cooler pipe from ball check fitting (vertically mounted fitting) at transaxle. (See callout (B) on illustration.)

3. Remove old upper transaxle oil cooler line.

4. Install new upper transaxle oil cooler line (Part Number 25625874) to transaxle finger tight.

5.Tighten line fitting to ball check fitting to 27 N.m (20 lb. ft.).

6. Assemble hose end to pipe. Install hose until stop on pipe is reached.

7. Install two (2) new hose clamps (Part Number 22527587) on hose at pipe end (install both clamps if only one was removed). Tighten clamps to 1.8 N.m (16 lb. in.).

8. Fill transaxle to proper level with DEXRON (R) IIIE fluid. Start vehicle and check for fluid leaks.

#### NOTICE: ENSURE THAT BOTH THE UPPER AND LOWER TRANSAXLE OIL COOLER LINES ARE SECURELY SEATED IN THEIR DESIGNATED RETAINERS. SEE CALLOUT (C) ON ILLUSTRATION.

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

General Motors of Canada Limited has determined that a defect which relates to motor vehicle safety exists in certain 1991-1993 Buick Park Avenue, Oldsmobile Ninety-Eight and FWD Cadillac DeVille/Fleetwood/Sixty Special and 1992-1993 Buick LeSabre, Oldsmobile Eighty-Eight and Pontiac Bonneville model vehicles. These vehicles have an upper transaxle oil cooler hose which could pull out of the crimped coupling. Under certain climatic conditions and under certain driving conditions, if this coupling were to separate and an ignition source were present, an engine compartment fire could occur.

To prevent the possibility of this condition occurring, your dealer will replace the upper transaxle and cooler line.

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.