Subject: noise under
Question: hi i have a 1993 eclipse gsx manual i hear a noise like if somebody is hiting it from under the car. it happens when i let go the cluth. what is the problem?
Answer: Dino,
Because the drivetrain of the all-wheel drive Eclipses are so complex, it's hard to pin-point. Your problem may be your throwout bearing, pressure plate, or clutch release cylinder. It is possible that you just have an air bubble in your clutch line.

The best thing to do is have your transmission inspected by a qualified transmission shop. Ask around for a transmission shop that is comfortable on working on Japanese cars. The Eclipse GSX is one of the toughest cars to work on, so be sure you get it done right. If you can't find a transmission shop you feel comfortable with, take your car to the dealership. They will be able diagnose and fix your problem.
Good luck!