Hesitation

This is for a 93 pontiac grand am with a 3.3L V-6.auto trans, and 150,000 miles..I have a hesitation in the engine and I know it is not the fuel filter or the spark plugs,or plug wires,or distributor because they were recently changed. I was wondering if it was the fuel injectors or something else. If anyone knows, I would appreciate some info... thanks.

It could very well be the injectors, you can try using the injector cleaners that you add to your gas tank, but being that the car is a 93 you may want to have the injectors porfessionally cleaned. That is one possibility, you may also want to look for any type of vacuum leaks and consider changing the pulg wires. There are also other posibilities such as coil packs, or emmission control devices. May be some of the other forum members will have some other ideas.

How many miles on the car?

Welcome to the Forum, you will get lot's of great advice here. There are alot of very knowledgable poeple here that have been through the experiences and can give you ideas and direction to help solve your problems.