Between 5 and 30 MPH the engine sputters and feels like it is going to stall?

Hi,

This could be a few different things. For example, a failing fuel pump or filter or even an exhaust-related (restriction) or EGR issue.

To get started, follow the directions in the following link, and let me know if you retrieve any diagnostic trouble codes.

Note: This has an OBD1 system and doesn't require a scan tool to retrieve codes.

https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval

Let me know what you find. If you are unable to perform this test, pay attention to see if there are any strange odors from the exhaust, smoke from the exhaust, or any rattling or strange sounds from the exhaust system.

Let me know.

Take care,

Joe