I have a 1990 Bronco. The problem is when i drive it for a while it starts to lose power when the temp starts to rise of the vehicle. I have done a tune up replaced the TPS, O2 sensor and IAC. Sometimes I can't get out of the way of traffic it is so bad. I can hear a loud whine from the Fuel pump. The hotter it gets the more it skips as I go down the road. After it sits over night it runs great until it gets hot. I would like any and all advice possible to help out.

Thanks