1. Springs:
* Broken or Sagging Springs: This is the most probable cause. Visually inspect the rear leaf springs (Town Cars of that era typically used leaf springs). Look for any obvious breaks, cracks, or significant sagging compared to the opposite side or a known good example. A broken spring will dramatically lower the ride height.
* Spring Fatigue: Even without a break, springs can lose their strength over time, leading to sagging. This is less likely to cause the suspension to be *almost* on the tires, but could contribute.
2. Shocks/Struts:
While shocks/struts don't directly support the weight like springs, severely worn-out shocks can allow the car to settle lower than normal. However, this alone is usually not enough to result in the suspension being *almost* on the tires. Check them for leaks or excessive play.
3. Air Suspension (if equipped):
Some higher-end Town Cars from that year may have had an optional air suspension system. If yours does, the air bags or their associated components (compressor, lines, valves) could have failed, resulting in a significant loss of air pressure and a drastically lowered ride height. Check the air compressor for operation and the air lines for leaks.
4. Other Suspension Components:
* Broken or Damaged Shackles/Bushings: These connect the springs to the chassis. Worn or broken shackles can allow the springs to sag further than they should. Inspect them for play, cracks, or excessive wear.
* Axle Alignment: While less likely to cause this severe of a drop, extreme misalignment could contribute. However, other symptoms (such as uneven tire wear) would likely be present.
5. Weight Distribution:
While unlikely to be the sole cause of such a dramatic drop, an unexpectedly heavy load in the trunk could contribute. Remove any unnecessary weight from the trunk and see if there's any change.
How to Proceed:
1. Visual Inspection: Start with a thorough visual inspection of all the components listed above. Look for anything out of the ordinary, such as broken parts, excessive rust, or significant wear.
2. Comparison: Compare the affected side to the opposite side. Are there visible differences in spring height or component condition?
3. Professional Assessment: If you're not comfortable performing a thorough inspection yourself, take your car to a qualified mechanic. This is crucial as driving a car with severely compromised suspension is dangerous. They can properly diagnose the problem and recommend the appropriate repairs.
Safety Note: Driving a car with a suspension this low is extremely dangerous. It can lead to severe damage to the undercarriage, loss of control, and accidents. Avoid driving the vehicle until the problem is diagnosed and fixed.
