Will a 02 engine swap with a 07 engine on a 'chevy trailblazer LST

What is your question?

I'm wanting to change out my 2007 Chevy trailblazer LST engine with a 02 Chevy trailblazer will it interchange and if so what do I need to change with it if not what year will change with it

What makes this problem better or worse?

Turning it on makes it worse

How long has your 2007 Chevrolet Trailblazer had this problem?

Few weeks