I replaced water pump and thormostat, but it keeps getting hot..

What is your question?

The hose going from right under the radiator cap to the top part of the radiator has so much pressure on it. It looks as if it's going to burst. But the hose going from the lower part of radiator to the thormostat has no pressure on it.

What makes this problem better or worse?

Acceleration

How long has your 2008 INFINITI G35 had this problem?

3 weeks