The shop is getting into the last stages of the H/G replacement and they just installed the timing belt. All parts were from a new kit with all Aisin parts. When they pulled the pin on the tensioner there was not much pressure on it. They left it overnight and in the morning you could still squeeze the belt and get the tensioner to move with very little tension. The shop wants to use the old tensioner since it holds pressure better, and to swap over the new roller. It appears that this tensioner was replaced at some time, since it's clearly newer than any of the other components on the front of the engine. Anyone had any experience with a weak tensioner? Do they have to pump up through use? Do the hydraulic parts wear out after awhile?