One problem related to o2 sensor has been reported for the 2004 Dodge Dakota. The most recently reported issues are listed below.
From day 1 when I pulled off of the dealers lot, the truck will stall after coming to a complete stop or right after engine has been cranked up. Will not shut completely off but when pulling off from a stopped position if would act as only one piston is firing. Have carried the vehicle into the dealership approximately 8 times the first three months. Only after diamler Chrysler sent a representative down they did a temporary fix by replacing the O2 sensors. That worked for about 8 months. Now the problem is back again.