Hi 2008 3.6tdv8 had the trans failsafe come up two weeks ago (code 3rd gear ratio implausible.Also had the problem with slipping out of gear - fixed by replace gear linkage cable pivot. Trying to gain confidence in the car. My question is when driving if i take my foot of the throttle the revs drop to idle like ot is coasting. When u reapply the throttle ot revs to match the speed of the car. The dash stays show d at all times. Is this normal pr ia the gearbox failing. It had a flush and a new torque converter this year.