absolutely new oil pump. That thing is a critical component on your car and if it has some miles on it, it's worth replacing. Get it NEW from TOYOTA, it's like 190 or something from champion but it's worth every penny. I would also replace the water pump. The only time I wouldn't replace those two things is when I know EXACTLY how many miles they have on them (because I installed them last) and it was less than 100,000.