95 jeep cherokee a/c vent problem

I have experienced a problem with a 2002 Chevy Venture. It has been going on for about 6 months. It seems there is one dull clunk at times coming from the passenger side when turning a corner. There are no other problems felt in the front end and this clunk only happens once in a while while turning, not all the time. It hasn't really gotten any worse over this time period. I had the car inspected recently and everything passed. Any thoughts?

I have a 1992 Jaguar xj6, 4.0. (That is my first problem, I know!) I recently had to replace the fuel pump, and the fuel filter. After reparing the fuel delivery issues I tested for spark. I had an orange spark (I've never seen this before,) and noticed that the plugs were rather worn so I replaced the plugs, wires, cap, and rotor. I also took the ignition coil in for testing at an autozone and it checked out. I had the car on the road for about two weeks and then I started to run into trouble again. One night the car would not fire after it had been sitting for almost 11 hours. I tried several times and finally I reset the inertia switch and it fired right up ( not sure if this is coincidence or not.) A week later the car would not start again... this time it sat for two days. Today I went to see if it would start and it did. I started it and shut it off about 4 times (changing the oil) and when I went to start it up again, nothing:wall: . It cranks strong, and when it did run the tach reading held steady. My friend who works on alot of cars believes that it is the ignition control module. Can anyone help me out with an opinion?