Got my water pump changed out finally, and the water cooler installed with
new hoses and seal, fresh oil change and Mann filter. Now the oil pressure
light AND warning horn go off, just crusing anywhere. Smooth road, rough
road, fast or slow, it just happens. It's just for a few seconds then all
is well, seemingly, but it gives me a heart attack enery time it does that.

Anyone have any ideas as to what this might be.

The connector was cleaned then brushed with a wire brush to ensure good
metal to metal contact before being hooked back up.

John