Here's a general outline of the process. This is NOT a comprehensive guide and should be supplemented with a repair manual specific to your Escalade (either a Haynes or Chilton manual, or a service manual from GM). Repair manuals provide detailed instructions, torque specifications, and diagrams essential for the job.
Safety First:
* Disconnect the negative battery cable before starting any work.
* Use jack stands to securely support the vehicle. Never work under a vehicle supported only by a jack.
* Wear safety glasses and gloves.
* Have a helper if possible, especially for heavier components.
General Steps (Consult your repair manual for precise details):
1. Identify the faulty mount: Determine which motor mount needs replacement (there are typically three: one on each side and one in the front). Visually inspect for cracks, tears, or excessive movement.
2. Access the mount: This will vary depending on the specific mount. You may need to remove:
* Underbody components: Possibly parts of the exhaust system, skid plates, or other undercarriage components to get clear access.
* Engine compartment components: Depending on the mount location, you might need to remove or loosen certain parts to gain better access.
3. Support the engine: Before removing the mount bolts, securely support the engine with a jack positioned strategically under the oil pan or engine block. This is crucial to prevent the engine from falling and causing damage or injury. Use jack stands to further secure the jack.
4. Remove the mount bolts: Carefully remove the bolts securing the motor mount to the engine and the frame. These bolts can be stubborn and may require penetrating oil and a breaker bar.
5. Remove the old mount: Once the bolts are removed, carefully separate the old motor mount from the engine and frame. This might require some prying, but be gentle to avoid damaging surrounding parts.
6. Install the new mount: Position the new motor mount correctly. Ensure it's aligned properly before tightening the bolts.
7. Tighten the bolts: Tighten the bolts to the manufacturer's specified torque. This information is critical and will be in your repair manual; using the wrong torque can damage the mount or surrounding components.
8. Reinstall components: Reinstall any components that were removed to access the mount.
9. Lower the engine: Carefully lower the engine support jack after ensuring the new mount is secure.
10. Reconnect the battery cable: Reconnect the negative battery cable.
11. Test drive: After the repair, test drive the vehicle to ensure the problem is resolved and there are no unusual noises or vibrations.
Important Notes:
* Torque specifications: Using the correct torque is essential. Incorrect torque can lead to premature failure of the motor mount or damage to other parts.
* Repair manual: A repair manual specific to your 2007 Cadillac Escalade is absolutely necessary. It will provide detailed diagrams, torque specifications, and step-by-step instructions tailored to your vehicle.
* Professional help: If you are not comfortable performing this repair, it's best to take your vehicle to a qualified mechanic.
This is a complex repair. Again, do not attempt this unless you have experience working on vehicles and have the proper tools and a repair manual. Improper repair can result in serious injury or damage to your vehicle.
