Does 1993 Eagle Vision TSi have an interference engine?

Answer 1

The Vision's TSi trim code always incorporated the 3.5 liter engine (not the smaller 3.3 liter engine). Technically, the 3.5L engine is "considered" an interference engine by sources I've read, however in practicality, it may as well be considered a non-interference engine.

This means that when the timing belt breaks when the engine is in operation, allowing the valves to function out of sync with the pistons, no valve damage is expected. (You would normally expect valve damage in this situation because the pistons would smack the free running valves, e.g. the valve would be open--lower into the chamber--when the piston might be at full up stroke.)