Here's a general procedure. Specifics might vary slightly depending on your exact model and the condition of your vehicle. Consult a repair manual specific to your 1992 Chevy Lumina APV 3800 for detailed diagrams and torque specifications. This is crucial for avoiding damage.
Tools You'll Likely Need:
* Jack and Jack Stands: Absolutely essential for safety.
* Wheel Chocks: To secure the front wheels.
* Socket Wrench Set: Various sizes, likely including metric.
* Wrench Set: Possibly both metric and standard.
* Breaker Bar (optional but recommended): Bolts can be stubborn.
* Penetrating Oil (like PB Blaster): Soak the bolts beforehand to loosen them.
* Torque Wrench: For proper reinstallation.
* Ratchet: To speed up the process.
* Large Flat-Head Screwdriver (potentially): To help pry things loose if needed.
* Gloves: To protect your hands.
* Shop Towels or Rags: To clean up spills and keep things tidy.
* Repair Manual: Essential for specific details and torque specs.
Procedure (General Steps):
1. Safety First: Secure the vehicle safely on jack stands. Engage the parking brake and use wheel chocks on the front wheels.
2. Locate the Mount: The rear transmission mount is located at the rear of the transmission, connecting it to the body of the vehicle. It's likely a rubber bushing surrounded by a metal bracket.
3. Access the Bolts: You'll need to access the bolts securing the mount to both the transmission and the vehicle's body. This may require removing some surrounding components for better access. Your repair manual will be crucial here. Expect to work in a somewhat cramped space.
4. Apply Penetrating Oil: Generously spray penetrating oil on all the bolts. Let it sit for at least 15-20 minutes (or even longer) to work its way in. Reapply if needed.
5. Remove Bolts: Use the appropriate sockets and wrenches to carefully remove the bolts. A breaker bar might be necessary if they're seized. Be prepared for resistance.
6. Lower the Transmission (Potentially): Depending on the mount design and its connection to the transmission, you may need to slightly lower the transmission to gain clearance for removing the mount. Use a transmission jack for this if possible to avoid damage. This step is where your repair manual becomes indispensable. Improper lowering can cause damage to the transmission or other components.
7. Remove the Mount: Once the bolts are removed, the mount should come free. It might be slightly stubborn due to the rubber bushing; gentle prying might be necessary.
8. Installation (Reverse Order): Installation is the reverse of removal. Remember to use the correct torque specifications from your repair manual when tightening the bolts.
Important Considerations:
* Consult a Repair Manual: This is not a job to attempt without a repair manual specific to your 1992 Chevy Lumina APV 3800. The steps and bolt locations can vary significantly depending on the vehicle.
* Transmission Jack (Recommended): Using a transmission jack will make lowering and raising the transmission much safer and easier.
* Professional Help: If you are not comfortable working under your vehicle or performing this type of repair, consider taking it to a qualified mechanic. Improperly removing or installing the transmission mount can cause significant damage.
Remember, safety is your top priority. Take your time, be methodical, and consult your repair manual throughout the process. Good luck!
