CAMPAIGN: P/S PUMP RETURN HOSE REPLACE IF ROUTED WRONG

MODELS/YEARS: 1986 NINETY-EIGHT

CONDITION

General Motors has determined that a defect which relates to motor vehicle safety exists in some 1986 Oldsmobile Ninety-Eight models. These vehicles may have insufficient clearance between the power steering pump return hose and the engine exhaust manifold. This condition could cause overheating of this hose, resulting in a hole in the hose and subsequent fluid leak. Should this occur, it is possible there could be an engine compartment fire without prior warning.

VEHICLES INVOLVED

Involved are 1986 Oldsmobile Ninety-Eight models within the following VIN breakpoints:

Assembly Plant Beginning Up To And Including -------------- --------- ------------------- Wentzville(1) Start of Production G1324661

DEALER ACTION

To prevent the possibility of this condition occurring on vehicles involved, dealers are to replace the power steering pump return hose if it was routed incorrectly. Refer to the Service Procedure of this bulletin.

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.

SERVICE PROCEDURE

1. Open vehicle hood, cover front fenders and determine if power steering pump return hose is routed correctly. Return hose must be routed outboard and under engine wiring harness. Refer to Figure 1.

a. If hose was not routed correctly, replace the hose with Part Number 25529012. Refer to Figure 2 for proper installation of the new hose.

b. If hose was routed correctly, replacement is not required.

2. Check to be sure there is a minimum of 2 1/2 inches (63.5 mm) clearance between the engine wiring harness and the exhaust manifold. Refer to Figures 1 and 2. If required, position harness outboard and to the right. it may be necessary to strap the harness to the heater hoses to maintain this clearance.

3. If hose was replaced, fill and bleed power steering system, following the procedure on Page 3B1-2 of the 1986 Firenza, Calais, Cutiass Ciera, Delta 88 and Ninety-Eight Chassis Service Manual.

4. Install a Campaign Identification Label.

Each vehicle modified in accordance with the instructions outlined in this service procedure will require a campaign identification label. Each label provides a space to include the campaign number, the five (5) digit dealer code of the dealer performing the campaign service, and the date vehicle was campaigned. This information may be inserted with a typewriter or ballpoint pen. When installing label, clean the surface of the radiator support, and apply the campaign label where it is readily visible.

PARTS INFORMATION

If the inspection determines that the power steering pump return hose requires replacement, replace the hose with Part Number 25529012, available from the Warehousing and Distribution Division of General Motors (WDDGM). To ensure that this part will be obtained as soon as possible, it should be ordered from WDDGM on a C.I.O. order with no special instruction code, but order on an advise code (2).

CLAIM INFORMATION

Description Failure Code Labor Operation Labor Hours ----------- ------------ --------------- ----------- Inspect Only 96 V3700 .2

Inspect and Replace 96 V3701 .4 Hose

Parts will be credited at dealer cost plus 30%.

.1 hour for clerical administration may be added to the above operations.

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.