[simi_go]

Last weekend I was about to replace a o2 sensor when I noticed an oil leak coming from the oil filter housing. So I replaced the seal and ever since then I have had this coolant leak. I only notice it when the water pump is running. But it seems to be coming from a screw above the pump and also from a tube going from the pump. Before I replace the pump and thermostat I was just hoping to get some second opinions. Since it just happened after draining the coolant I was thinking that it may be some seal somewhere. Any ideas?