- Joined
- Nov 3, 2016
- Posts
- 4,459
- Reaction score
- 9,072
- Location
- Eastern WA
- Ram Year
- 2020 Limited
- Engine
- Hemi 5.7L non-Etorque
I have a 22 model with the etorque. I got used to the stop/start function and just ignored it. Then I got to hearing about the starter/alternator motor going out and taking weeks if not months to get a new one. That's when I put the stop/start override chip in so it no longer kills the engine at a stop. My thinking is that the etorque starter isn't going to fail if I don't use it.
The main failure in the MGU is the bearings. Since it's connected to the crankshaft directly with the serpentine belt it's always spinning if the engine is spinning, so the bearings aren't really getting a break by disabling start/stop.
Edit:
Yes it will if you have a bad unit. It runs constantly if the engine is running. It charges the 12v battery through the 48v system Also, if a bearing fails then you are still out of luck. Usually what fails are the bearings, and those are replaceable for around $40. The reason the winding fails is when the bearing goes, it wobbles, and the windings can get damaged.
So, all turning the stop/start does is stop the action, not any damage.
Although there is a back-order at dealers, it appears that the MGU is still available.
You beat me to it lol.
