Since I've bought my 92 RS, i've replaced the whole cooling system except for hoses and the resovoir. Yes, even down to the thermostat and radiator cap. Anyway, I have a slow dripping leak at the flushing tee. I tightened down the clamps but that didn't help. I bought a prestone flush kit and it has a tee in there, but the one on the car currently was on there before I bought it. If I replace this tee, will it help and will I have to drain the whole system again? I just flushed it really well two days ago.

Thanks!