I am replacing the pressure control solenoid - my 2004 GP , has the 4T65E and is intermittent symptoms related to DTC 1811. Is it necessary, if only changing out this unit , do you need to completely remove the side cover, or will there be enough space to remove and insert this unit by just having the cover unbolted and angled away. This unit is positioned at the friont of the body behind the cover, and all diagrams indicate it may be accesible without the cover completely removed. I would greatly appreciate the info if anyone has done this change out. The pcs is widely known to be defective if original, and should fall under GM recall, instead of just a lousy TSB. thanks in advance for your time, happy 4th and god bless the USA!!