Junior Member, warming up (<31 posts)
Join Date: Sep 2018
Thanked 0 Times in 0 Posts
This caught my eye and I've experienced a similar issue in my downhill driveway.
This is my interpretation:
In my rig (SMG) there is a "magic" speed where the computer isn't sure if it should engage or disengage the clutch when coasting downhill. Too slow and it's disengaged to prevent stall, fast enough and clutch is engaged. Depending on the grade, first gear will engine brake you enough that the car will slow down to the point of disengaging the clutch to prevent a stall. You pick up speed, until clutch re-engages, and then you find yourself in a herky jerky cycle.
I just drop it in Neutral and coast down to the end of my driveway, but YMMV in a parking garage. I don't have to worry about traffic so much in my driveway.
Afterthought: In my mind the computer does a damn good job 90% of the time. I find it fascinating! But, in cases like this, there are some nuances to a manual transmission that the computer isn't necessarily privy too. That's why I opt for a Neutral coast in this specific case, primarily to reduce cycles on the components. ^_^ OK shutting up! Thanks!
Last edited by Gothamitic; 3rd July 2019 at 01:05 AM.