Looking for possible causes on this one. I have a noise eminating from the front passenger side when I accelerate from a stop. Here are the particulars:

1. It only makes this noise when the outside temp is below 38F.
2. It makes the sound when I accelerate from a stop.
3. It does not make the sound if I am stopped, put the car in neutral, then hit the accelerator.
4. It makes the sound when I stop abruptly from a standing start.
5. It does not seem to make the noise when I go in reverse from a stop.
6. It sounds like the noise is coming from a location approximately 2/3s of a distance from me to the front passenger side wheel.
6. The best I can describe the sound in typing is: eeh..earh..guh.guh.guh - From the passenger cabin.
7. From outside the car it sounds like: euh..guh.guh.guh.

These are some inclinations of mine: manifold? exhaust? something loose? tranny? Any thoughts out there? Thanks in advance.

Pete.