Where do you put freon in on a dodge neon 98?

The low-pressure port for adding refrigerant (Freon) to a 1998 Dodge Neon's air conditioning system is usually a larger fitting, often blue in color, located on the low-side of the AC system. However, you should NOT attempt to add refrigerant yourself unless you are a trained and qualified technician.

Improperly adding refrigerant can be dangerous and cause further damage to your AC system. The system needs to be properly diagnosed to identify the actual cause of the problem. Low refrigerant is only one of many possibilities. There could be a leak, a compressor failure, or other issues. Adding refrigerant to a system with a leak will simply result in wasted refrigerant and money.

It's crucial to have a qualified mechanic perform a proper diagnostic and repair. They have the necessary tools, knowledge, and safety equipment to handle the refrigerant and identify the true problem.