For 1990-2009 cars

# CAMPAIGN:UPPER TRANSAXLE OIL COOLER LINE SEPARATION

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

MODEL: ALL 1991-1993 FWD CADILLAC DEVILLES, FLEETWOODS AND SIXTY SPECIALS EQUIPPED WITH THE 4.9L ENGINE (VIN CODE B)

The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.

If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation.

To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repair their vehicle as soon as possible. As you will see in reading the attached copy of the owner letter, if the condition is not remedied within a reasonable time, owners are instructed on how to contact the National Highway Traffic Safety Administration.

#### CONDITION

General Motors has determined that a defect which relates to motor vehicle safety exists in all 1991-1993 FWD model Cadillac DeVilles, Fleetwoods and Sixty Specials equipped with the 4.9L engine (VIN Code B). 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 climate conditions and under certain driving conditions, if this coupling were to separate and an ignition source were present, an engine compartment fire could occur.

#### DEALER ACTION

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

#### OWNER NOTIFICATION

Owners of vehicles affected by this campaign will be notified by letter from Cadillac Motor Car Division. A copy of the owner letter is included with this bulletin. Note that this owner notification process will be initiated in stages beginning with owners residing in colder climates. Dealers located in more temperate climates will be advised via DCS message as to when owners in their area can expect to receive this notification letter.

#### VEHICLES INVOLVED

Involved are all 1991-1993 FWD model Cadillac DeVilles, Fleetwoods and Sixty Specials equipped with the 4.9L engine (VIN Code B) built within the following VIN ranges:

Model Year VIN Range ---------- --------- 1991 From M4200001 Through and Including M4347998 1992 From N4200001 Through and Including N4342329 1993 From P4200001 Through and Including P4330716

Note that all suspect vehicles should be checked for campaign involvement prior to sale or service utilizing the Vehicle Information Service System (VISS).

#### DEALER LIST

A dealer assigned list of vehicles involved is enclosed for your follow-up. If no list is enclosed, none of the involved vehicles are known to be in your area at this time.

This list may contain owner names and addresses obtained from state motor vehicle registration records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign.

#### Notice: GM's interpretation of California state regulations regarding the use of motor vehicle registration data obtained from the California DMV strictly prohibits the sharing of such information with it's dealers. In these cases this list will display the VIN only of the involved vehicle with the message "Owner Information Restricted". We suggest that affected dealers check their internal records for possible owner information.

#### DEALER CAMPAIGN RESPONSIBILITY

All unsold new vehicles in dealers' 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 service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward. Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required correction according to the 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 enters your 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.

#### COURTESY TRANSPORTATION

The availability of courtesy transportation to owners of vehicles involved in this campaign is of the utmost importance in maintaining customer satisfaction. Dealers are to take the steps necessary to ensure that these owners clearly understand that courtesy transportation is available and will be provided upon request at no charge to the owner. Dealers should submit such claims in the normal manner and appropriate credit will be issued.

#### PARTS INFORMATION

The parts required to complete this campaign should be obtained from the Parts Distribution Centers of General Motors Service Parts Operations (GMSPO). A description is provided below:

Part Number Description Quantity/Vehicle ----------- ----------- ---------------- 25625874 Pipe, Transaxle Fill Cooler - Upper 1 or 25623916 3524502 Clamp 2

#### Notice: Part Number 25623916 will only be needed on a very small number of vehicles and should not be stocked, but ordered when needed.

To ensure that these parts are obtained as soon as possible, they should be ordered on a "CIO" order using advise code "2" with no special instruction code. Also, if necessary, these parts may be ordered on a "VIP" order and Cadillac will reimburse dealer for any surcharge involved.

An initial supply of required parts will be preshipped by GMSPO to dealers who have involved vehicle(s) assigned to them. These parts will be charged to dealer's open parts account. Additional parts requirements should be ordered as described above.

#### 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 oil cooler line (no hose clamps). On these vehicles it will be necessary to replace the complete line with Part Number 25623916. Pipe to radiator torque when installing a one piece line is 27 N.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 3524502) on hose at pipe end (install both clamps even if only one was removed). Tighten clamps to 1.8 N.m (16 lb. in.).

8. Fill transaxle to proper level with DEXRON IIE 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 Completion Label.

#### CAMPAIGN COMPLETION LABEL

Upon completion of this campaign, a Campaign Completion Label (CAT. NO. S-1015) should be affixed on a clean, dry surface of the radiator core support in an area clearly visible when the hood is raised. Each label provides space to print in ink (or type) campaign number 93-C-55 and your five-digit Cadillac dealer code. Dealers are to take the steps necessary to ensure that these numbers are recorded and the label is properly affixed.

#### CREDIT

Credit for this campaign will be issued upon receipt of a properly prepared warranty claim which includes the following information:

Failure Failed Part Parts Labor Labor Sublet Code Part No. Quant. Allow. Op. Hrs. Mat/Tow ------------------------------------------------------------------------ Replace Upper Transaxle Oil Cooler Line (To Transaxle) 96 25625874 * ** V9350 0.3*** **** or 25623916 * Use actual parts count including transaxle fluid requirements.

** The "Parts Allowance" should be the sum total of the current GMSPO dealer net price plus 30% of all parts required for this repair.

*** This labor time represents the actual time required to perform the correction. Dealers should apply for 0.1 additional hour for Campaign Administrative Allowance as "Other Labor Hours".

**** For submission of "VIP" surcharge, if necessary.

Dear Cadillac Owner:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

General Motors has determined that a defect which relates to motor vehicle safety exists in all 1991-1993 FWD model Cadillac DeVilles, Fleetwoods and Sixty Specials equipped with the 4.9L engine (VIN Code B). 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 climate 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, your Cadillac dealer will install a new upper transaxle oil cooler line (to transaxle) on your vehicle. Of course, this service will be performed at no cost to you.

The mailing of this letter has been coordinated to ensure that instructions for making this repair have been received by your dealer and that needed parts are available for your car. Please contact your Cadillac dealer as soon as possible to arrange a service appointment and courtesy transportation, if required. Please ask your dealer if you wish to know how much time is needed to perform this repair and process your vehicle.

The enclosed Campaign Owner Identification Card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary corrections in the shortest possible time. If you no longer own this vehicle, please let us know by completing this postage-paid reply card and returning it to us.

If you are not satisfied that we have done our best to correct this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W., Washington D.C. 20590, or call 1-800-424-9393 (Washington D.C. residents use 366-0123).

We are sorry to cause you any inconvenience; however, we have taken this action in the interest of your continued safety and satisfaction with our products. If you have any questions, please contact your Cadillac dealer or call our Consumer Relations Center at 1-800-458-8006.

Cadillac Motor Car Division General Motors Corporation

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.