One problem related to ignition module has been reported for the 2004 Chevrolet Venture. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Venture based on all problems reported for the 2004 Venture.
2004 Chevrolet, Venture, 65000 miles, the coolant temperature gauge started to function erratically, then it just goes up even passed the red markings on the indicator. I have replaced the coolant temperature sending unit(sensor), the thermostat, checked all the grounding to the pcm but everything it's good. Still the temperature gauge just resets when I open and close the ignition lock. I will be taking this to the local dealership for a diagnostic on the pcm.