Our 2007 T&C with 33,000 miles is not driven a lot. Sometimes it just sits for several weeks. Last Sept. when I drove it after such a spell there was a pronounced thumping with the frequency increasing with speed. You could also feel it in the brake pedal when apply the brakes. After driving it for a couple of days locally it went away. Drove it on a 2,000 mile long trip after that without any issue. Last week (May 2015) I noticed this again - seemed even more pronounced than the prior time. After driving it about 60 miles it seems to have almost entirely gone away go away. Could it be rust on the rotors? The tires flattening slightly due to lo sitting unused? (The front tires have about 18,000 miles on them) Something with the CV joint? I realize that a diagnosis by email is just speculative but thought some here might have a clue.
2009 Vibe 1.8L Carbon Gray AT Power Pkg 1/12/092003 Vibe 1.8L Neptune AT Mono Power Pkg 1/27/03 [sold 2/2/09]2007 T&C SWB 7/31/07 "Broke people stay broke by living like they're rich. Rich people stay rich by living like they're broke."