ENGINE WIRE HARNESS MAY BE DAMAGED BY ENGINE BLOCK. Buick Coachbuilder 1991

For 1990-2009 cars

# ENGINE WIRE HARNESS MAY BE DAMAGED BY ENGINE BLOCK

#### Subject: ENGINE WIRE HARNESS MAY BE DAMAGED BY ENGINE BLOCK (REPOSITION AND SECURE HARNESS)

#### Model and Year: 1991 ROADMASTER ESTATE WAGONS 1992 ROADMASTER SEDANS

#### Condition:

---------- The main electrical harness (right rear side of engine) may contact the engine (see illustration). The heat from the engine block may damage the harness by shorting the wires to the block.

#### Cause:

------ The harness may be pushed forward from it's normal position, allowing contact with the engine block. A clip was added in production after the following VIN'S:

Assembly Plant VIN ------------- -------- Roadmaster Sedan NR402868 Roadmaster Estate MW403073 Wagon

#### Correction:

----------- 1. Disconnect negative battery cable.

2. Raise vehicle. Remove right front wheel and tire. Remove inner fender splash shield.

3. Inspect harness, and repair any damage as necessary.

4. Remove the plastic push-in clip from the bracket. The push-in clip can be left on the harness to locate the new clip.

5. Use clip, P/N 12010517, and self-tapping screw, P/N 11500086, to retain the harness to the bracket as shown in the illustration. Straighten bracket if necessary. Make sure the clip stays vertical after the screw is tightened.

6. Install inner fender splash shield. Install wheel and tire. Lower vehicle.

7. Reconnect negative battery cable.

Part number is currently available from GMSPO.

Parts are expected to be available on June 17, 1991. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation at dealer's expense. All other order types will be cancelled as incorrectly ordered while the 400 control is in place.

#### Warranty Information:

Labor Operation: T1731

Labor Hours: 0.6 hours, add .1 hours for locking wheel covers

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.