Operation CHARM: Car repair manuals for everyone.

Dealer Material, Owner Notification Information, Parts & Procedures Information

DEALER MATERIAL

If your dealership has vehicles involved in this campaign, you will receive the following items:

^ List of all vehicles involved in this campaign shipped to your dealership.

^ One (1) Campaign Identification Label per vehicle involved.

Involved vehicles have been identified by Vehicle Identification Number computer listings. Computer listings contain the complete vehicle identification number, owner name and address data, and are furnished to the involved dealers with the campaign bulletin. Owner name and address data will enable dealers to follow-up with owners involved in this campaign.

These computer listings 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.

OWNER NOTIFICATION

Owners of vehicles involved in this campaign will be notified by Buick Motor Division (See copy of owner letter included with this bulletin).
CHANGE OF OWNER INFORMATION

Dealers are to use the Dealer Communication System (DCS) to provide Buick Motor Division with subsequent Buick owner information. By reporting a change of owner name or address of a vehicle in campaign status over the DCS, the need to send a CVAR FORM FOR THAT VEHICLE IS ELIMINATED. Terminal input instructions are covered in the DCS Manual under Section 9, Page 9-J01A and B.

PARTS INFORMATION

The parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure these parts will be obtained as soon as possibly, they should be ordered from GMSPO on a C.I.O. order with NO special instruction code, but on an advise code (2).

PART NUMBER USAGE DESCRIPTION QUANTITY/VEHICLE

26013680 86-87 Riviera Power Steering Pressure Hose 1
Assembly (Hose Power Steering Gear Inlet)



TECHNICAL PROCEDURE

1. Open hood, cover right front fender, and disconnect negative battery cable.

2. Raise vehicle on hoist, remove heat shield and pipe retainer, disconnect power steering pressure hose at gear. See Illustration.

3. Lower vehicle, remove belt from power steering pump pulley and disconnect power steering pump pressure hose assembly at pump.

NOTICE: On some vehicles, it may be necessary to disconnect the return hose at the pump, remove the pump and pressure hose assembly from the vehicle, drain fluid from the pump, and mount the pump upside down in a vise (with the hose assembly up to prevent spring and flow control valve from filling out if union fitting on pump loosens). Spin off the pressure hose assembly.

The torque on the union at the pump should be checked for 75 N-m (55 ft.lbs.) if this method is used. To torque the union, the power steering pump pulley must first be backed off about 19 m (3/4 inch) with tool J 25034-B to allow socket access to the union hex. Reposition the pulley using tool J 25033-B.

4. Reverse steps (2) and (3) to install new power steering pressure hose assembly, Part Number 26013680. See Illustration for torques and routing information. Connect negative battery cable.
5. Fill and bleed power steering system, following procedure outlined below:

a. Raise the front of vehicle until the front wheels are off the ground.
b. Make sure power steering reservoir is filled with power steering fluid to the proper level and maintain level during Steps c and d.
c. With the engine turned off (not running), slowly turn the steering wheel from lock to lock.
d. Have an observer watch the fluid in the reservoir as the steering wheel is being turned. Continue turning steering wheel until air bubbles are no longer seen rising from the fluid.

6. Check system for leaks and proper operation.

7. Install a Campaign Identification Label.

8. Remove fender cover and close hood.