the good old water noise possible fix

Hey all, I just purchased a 88 4runner w/ the 3.0 a/t. It has that water noise some talk about and there are are a couple of parts that toyota says will fix it. I am told to replace water bypass hose part# 16261-65011 and water outlet part# 16331-65011. Hope this might help someone and hope the info is correct. Havn't tried it myself though. By the way, I saw on some earlier threads where the a/t temp light and another dash light come on or blink at the same time (can't remember the other light) anyone know the cause or fix? thanx