Can you air up the suspension on a Lincoln town car manually?

No, you cannot manually air up the suspension on a Lincoln Town Car. Lincoln Town Cars, even those with air suspension, do not have a manual air pump or valve to adjust the air pressure. The air suspension system is controlled electronically and automatically maintains the ride height. Any adjustments would need to be done through the car's onboard computer systems, or potentially with specialized diagnostic equipment. If the suspension is malfunctioning, you'll need to have it repaired by a qualified mechanic.