Chrysler Repair: 07 Pacifica chuging, 2007 chrysler pacifica, chrysler pacifica

Question
My 2007 Chrysler Pacifica with 3.8 motor feels like it chugs at about 25 mph and 50 mph. It is intermittent. The engine light is not on and the there are no codes or other symptoms.

Answer
Hi Scott,
Without codes it is difficult to diagnose a 'chug'. Can you tell me more? I have the manual for the '05 model and it includes the 3.8L. But without my understanding exactly how the malfunction manifests itself and with no code I am at a loss.
Roland
PS Sorry for the delay but I just found your question in the 'pool' to which the other expert had referred it.