Blower Motor and Fan Replacement for Cadillac DeVille 1998

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Remove the cross-car brace. Refer to Cross Vehicle Brace Replacement in Body Front End.
3. Disconnect and position the ignition control module assembly out of the way. Refer to Ignition Control Module Replacement in Engine Controls - 4.0L, 4.6L.
4. Position the cross-car harness out of the way.
5. Remove the solenoid purge valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement in Engine Controls - 4.0L 4.6L.



6. Remove the inertial plate screws from the blower motor.
7. Remove the inertial plate from the blower motor.
8. Disconnect the connector from the blower motor.
9. Remove the blower motor screws.
10. Remove the blower motor.

Important: Leave the blower motor in the box in order to reduce the amount of handling of the blower motor.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the blower motor and the screws.

Tighten
Tighten the screws to 4 N·m (35 lb ft).

2. Install the inertial plate and the screws.

Tighten
Tighten the screws to 4 N·m (35 lb ft).

3. Connect the connector to the blower motor.
4. Install the solenoid purge valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement in Engine Controls - 4.0L, 4.6L.
5. Reposition and install the ignition control module assembly. Refer to Ignition Control Module Replacement in Engine Controls - 4.0L, 4.6L.
6. Install the cross-car brace. Refer to Cross Vehicle Brace Replacement in Body Front End.
7. Connect the negative battery cable.