Well I just read 7 pages of excellent material.My problemis the rear drivers side door is closed ,lock mechanism works with both central locking switch,key fob ,and by pulling the inside handle. The only problem, the door will not open .. This happened about 3 weeks ago and it was freezing out so I figured I would just wait out the weather and fix it when it got warmer. One day I took the truck to the car wash and after the guys were done drying it one of them went to open the door and BINGO the door opened. Luckily I had some WD-40 and I sprayed the crap outta the door latch area and it worked fine till last night. Now I'm scratching my head like WTF? I guess I'll wait (or go to car wash again ,LOL) . Should I remove the mechanism and grease it up ? Or could it be the cable as described not having enough "tension"? Thanks