u/Less-Door4306

Hello! Looking for a little insight. Ive had my blazer for less than a year and have been on a fun tinkering journey. But there’s an awful lot I don’t know.
The small belt that powers my smog pump and ties into the fan wore out and broke yesterday. I drove home after removing it with no problems or concerns. I picked up a replacement and got it on there but there was an awful noise when I started. Worse than a loose belt squeal. I didn’t have anyone else’s eyes to look at what was happening and didn’t want it to run that way any longer than necessary. I’m thinking the smog pump might be seized up. My question is, long term, what could go wrong if I don’t get a belt back on there and have a functional smog pump? Again it’s an 88 k5. Thanks!