yep... if it does it after it gets to operating temp... shut off car and it goes away for a lil while.. those are all signs of a bad pressure control solenoid.. u just need to get a pressure control solenoid.. i got mine from Triple Edge Performance - Home Page for my 02 gtp but he sells 04+ solenoids too. its pretty easy.. just remove side pan and swap them out.. triple edge sells tech manuals for 4t65's also.