Can a timing belt be inspected

The 3.3L and 3.8L use a timing chain.

For those engines that use a timing belt, the manufacturers have suggested intervals those belts should be replaced. Trying to inspect them is really not the appropriate way to go. A high-mileage belt could look fine one day, and strip off a bunch of teeth the next day.

You don't have to worry about that. Your engine doesn't have a timing belt.

You're welcome. My daily driver is a rusty trusty 1994 Grand Voyager with the 3.3L engine. I have a 1995 Grand Caravan too, also with the 3.3L. Those are the smaller twin to your 3.8L engine.

My favorite vehicle of all time was my 1988 Grand Caravan, and I have an 1989 model. Those two have the 3.0L Mitsubishi-built engine. Those do indeed use a timing belt, but these are not "interference engines. Interference engines are a design in which the open valves will hit the pistons and be bent as the engine coasts to a stop when the timing belt breaks or just jumps a few teeth. At first interference engines were mainly found in smaller import engines, but today every manufacturer has at least a few of them

While we're on the subject, the belt replacement intervals are not always to be believed. One notable case had to do with Honda's in the mid to late 1980's. The manufacturer recommended replacing the timing belt every 75,000 miles, but they commonly broke at 65,000 miles. Those were interference engines, so a lot of owners got stung with expensive valve job repair bills. Just some more info you don't have to worry about.