Noise upon acceleration
I'm going to crawl under my van in a few minutes to check out a new noise that started yesterday. Thought I'd post it here in case somebody has any thoughts. Upon acceleration, I'm starting to get a low, throaty rumble from -- I think -- the exhaust of my 2001, 3.3L V-6 Dodge Caravan, 142,000 miles. It sounds like a blown muffler, or exhaust pipe. However, I only get the noise while in gear and it isn't constant. Additionally, the noise lasts for a fairly brief time. It seems to go away when the van is up to speed.
OK, that's all I know right now. Going to go check our paperwork to see if we've ever replaced the catalytic converter and then I'll take a look under the van. Any thoughts folks might have would be appreciated.