Before you begin:
* Disconnect the negative battery terminal. This is essential to prevent electrical shocks and short circuits.
* Gather your tools: You'll likely need a socket set (various sizes), screwdrivers (Phillips and flathead), pliers, possibly a ratchet, and a new wiper motor. A shop manual will give you the exact sizes.
* Protect your truck's interior: Cover the dashboard and windshield with cloths or plastic to prevent scratches.
General Steps (Consult your repair manual for specifics):
1. Access the wiper motor: This usually involves removing parts of the cowl (the panel under the windshield). This may require removing wiper arms, nuts, and possibly other plastic trim pieces. The exact procedure varies significantly by truck model. Your repair manual will detail how to safely remove the cowl and gain access to the motor.
2. Disconnect electrical connectors: Carefully disconnect the electrical connectors leading to the wiper motor. Take pictures or make notes to remember how they are connected for reassembly.
3. Disconnect linkage: The wiper motor is connected to the wiper arms via a linkage. Disconnect this linkage. Again, this will vary depending on your truck.
4. Remove the wiper motor: Once the electrical connectors and linkage are disconnected, you should be able to remove the motor itself. It's usually held in place by bolts or nuts.
5. Install the new wiper motor: Reverse the removal process to install the new motor. Ensure the linkage is properly connected and the electrical connectors are securely fastened.
6. Reconnect the electrical connectors and linkage: Double-check all connections.
7. Reinstall cowl and other parts: Reassemble the cowl and any other parts you removed.
8. Reconnect the negative battery terminal.
9. Test the wipers: Turn on the ignition and test the wipers to ensure they are functioning correctly.
Important Considerations:
* Repair manual: A repair manual specific to your 1997 Chevy truck model is absolutely necessary. Generic instructions won't be sufficient, and attempting this without one could lead to damage.
* Rust and seized parts: Older trucks may have rust or seized fasteners. Penetrating oil can help loosen these, but be patient and careful to avoid damaging parts.
* Safety: Always prioritize safety. If you're uncomfortable performing this repair yourself, take your truck to a qualified mechanic.
This is a simplified overview. Refer to your repair manual for the precise steps and diagrams specific to your 1997 Chevy truck model. Failure to do so could lead to damage or injury.
