Oil Gauge

1998 Plymouth Grand Voyager with 114,000 miles. The oil gauge light is coming on when I come to a stop. It will go out upon acceleration. This happens when the engine warms up. Does not happen when the engine is cold. Do you think it is the oil pump?

Change your oil and put next heavier weight in it. Sounds like tolerances might be getting wore pass specs on oil pump, or your bearings might be wearing passed specs. Need good bearings for good oil pressure. My 89 did this. Don't forget the filter. Try to stay away from Fram they like to filter out too much and get poor flow. They are real bad with fuel filters in the big rigs. That are the number one cause of big rigs with fuel problems on the road.