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SOLUTION for the sliding door button. This works for me when the button sticks. You make a fist and hammer the handle just below the button, the button usually pops out after one or two good wacks. I found this out after taking the door and handle apart to see if I could find out what was causing the problem. Yes, my 98 had sludge, consumed oil in 2000 and was told poor oil change habits. The value seals have been replaces and my fingers are now crossed.