CAMPAIGN:ENGINE OIL COOLER INLET HOSE. Buick Coachbuilder 1994

For 1990-2009 cars

# CAMPAIGN:ENGINE OIL COOLER INLET HOSE

#### SUBJECT: ENGINE OIL COOLER LINE CONTACTS STEERING GEAR

#### Models: 1994 Chevrolet Caprice, Buick Roadmaster and Cadillac Fleetwood

#### TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that a defect which relates to motor vehicle safety exists in certain 1994 Chevrolet Caprice, Buick Roadmaster and Cadillac Fleetwood model vehicles equipped with engine oil coolers (RPO KC4), and 5.7L (RPO LT1) or 4.3L (RPO L99) engines. The engine oil cooler inlet hose on these vehicles may have been installed too close to the steering gear. The hose may wear through if the slit in the protective sleeve on the hose faces and contacts die steering gear. This wear through could allow engine oil to leak onto the engine and could cause an engine compartment fire.

To prevent the possibility of this condition occurring, dealers are to inspect the engine oil cooler inlet hose and, as necessary, reposition the hose to create the proper clearance and assure that the protective sleeve slit faces the proper direction. Also, if hose wear is evident, the hose will be replaced.

#### VEHICLES INVOLVED:

Involved are certain 1994 Chevrolet Caprice, Buick Roadmaster and Cadillac Fleetwood model vehicles equipped with engine oil coolers, and 5.7L or 4.3L engines and built within the following VIN breakpoints:

Year Model Plant Plant Code From Through 1994 Chevrolet Caprice Arlington "R" RRI00001 RR114477 1994 Buick Roadmaster Arlington "R" RR400001 RR400741 1994 Cadillac Fleetwood Arlington "R" RR700001 RR706749

#### 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 kilometres 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 be made before selling 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:

DUE TO THE SMALL NUMBER OF VEHICLES INVOLVED, DEALERS ARE ENCOURAGED NOT TO ORDER CAMPAIGN PARTS FOR USE AS SHELF STOCK. PARTS SHOULD ONLY BE ORDERED WHEN INSPECTION DETERMINES THAT IT IS NECESSARY TO REPLACE AN ENGINE OIL COOLER INLET HOSE. ONLY AN ESTIMATED 10% OF INVOLVED VEHICLES WILL REQUIRE HOSE REPLACEMENT.

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

Part Number Description Quantity/Vehicle 10239698 Engine Oil Cooler Inlet Hose 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 1A Inspect Oil Cooler Inlet Hose - .3 Proper Clearance Already Present 2A Inspect Oil Cooler Inlet Hoe - .3 Hose Rerouted - No Signs of Wear 3A Inspect Oil Cooler Inlet Hose - .5 Hose Replacement Performed Due to Signs of Wear

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

Repair Code 3A includes $ 1.00 for engine oil used to perform the required repairs.

SERVICE PROCEDURES

INSPECTION

Locate engine oil cooler inlet hose and inspect to assure that hose shows no evidence of contact with steering gear and that hose has at least 25mm (I inch) clearance from steenng gear (see Figure 1).

A If hose has at least 25mm (1 inch) clearance and shows no evidence of contact, no repair is required. Install Campaign Identificarion label and return vehicle to owner or dealer stock.

B If hose has less than 25mm (1 inch) clearance and/or shows evidence of contact (witness marks), rotate and inspect hose for signs of wear.

0 If there is evidence of wear on hose (slight wear on conduit is acceptable), replace hose assembly following procedures in the appropriate 1994 Service Manual.

0 If there is no evidence of wear on hose, reroute hose as described in "Rerouting Procedure" below.

REROUTING PROCEDURE

1. Loosen upper engine oil cooler inlet hose to oil cooler fitting but do not disconnect. 2. Rotate hose a half (1/2) turns so that it is approximately 25mm (1 inch) away from power steering gear both (see Figure 1) 3. Tighten fitting with hose in position using caution that hose does not rotate back to originalposition while tightening.

4. Assure orientation of conduit. Open side of hose conduit should be facing away from steering gear. 5. Run vehicle and check for leaks. Check and fiU oil level as required. 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.\\

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.