That said, if you're determined to do it yourself, here's a *general outline* of the process. This is NOT a complete, step-by-step guide, and variations may exist depending on the specific engine and options on your vehicle. Always consult a repair manual specific to your 1995 Lincoln Town Car for precise instructions and diagrams.
General Steps (Highly Simplified):
1. Preparation: Disconnect the battery negative terminal. Drain the coolant completely. Protect the interior from spills and damage.
2. Dashboard Removal (Most Difficult Part): This usually involves removing the steering wheel (requiring special tools and knowledge), the instrument cluster, radio, various trim pieces, and potentially the glovebox. This is a time-consuming and delicate process; take many pictures as you go. Consult a repair manual for specific removal sequences.
3. Access to the Heater Core: Once the dashboard is partially or fully disassembled, you'll gain access to the heater core housing, typically located behind the dashboard.
4. Disconnect Heater Core Hoses: Carefully disconnect the heater core hoses. Have a container ready to catch any remaining coolant.
5. Remove the Heater Core Housing: This often involves removing screws, bolts, and possibly clips holding the housing in place. Again, a repair manual is crucial.
6. Remove the Heater Core: The heater core itself is usually held in place by clips or brackets within the housing. Carefully remove it, taking note of its orientation for reinstallation.
7. Install the New Heater Core: Install the new heater core, ensuring it's properly seated and secured.
8. Reassemble Everything: Reinstall the heater core housing, reconnect the hoses, and carefully reassemble the dashboard components in reverse order of removal. Double-check all connections and fasteners.
9. Refill and Bleed the Cooling System: Refill the cooling system with the proper coolant mixture and bleed the system to remove air bubbles. This is vital to prevent overheating.
Crucial Considerations:
* Repair Manual: A factory service manual or a reputable aftermarket repair manual specific to your 1995 Lincoln Town Car is ABSOLUTELY ESSENTIAL. This will provide detailed diagrams, torque specifications, and step-by-step instructions.
* Tools: You'll need a variety of tools, including screwdrivers (Phillips and flathead), sockets, wrenches, pliers, and possibly specialized tools for dashboard removal and steering wheel removal.
* Patience: This is a lengthy and intricate process. Plan for several hours, or even days, of work.
* Risk of Damage: Improper removal or reinstallation can lead to damage to the dashboard, HVAC system, or other components.
Recommendation: Unless you have significant experience with automotive repair, especially dashboard disassembly, take your vehicle to a qualified mechanic. The cost of professional repair will likely be less than the cost of parts and the frustration of a botched DIY job.