Have a 2004 Ford Expedition. Reverse went out all of a sudden, drive is jumpy. Was told to replace the solenoids as a DIY. Was able to replace the shift and lockup but cant remove the PRESSURE SOLENOID. Any ideas? There is a gear piece in the way. Tried to get that off, but it wont budge. Only need about 1/2 inc more room to pull it out.