corder1979
New CEG'er
Would anyone know off the top of their head if an overcharging alternator could cause the transmission to shift hard like bad TSS symptoms? I happened to get a new scan tool the other day, so I checked codes, cleared them (CEL hasn’t come back on yet), but it did say it’s overcharging at 14.8V. From what I understand, the tranny is electronically controlled, so wouldn’t overcharging cause shifting problems the same as undercharging? Tried a little redneck troubleshooting, and turned on the heater full blast when it started acting up and it seemed to stop once the heater was drawing current. I figured maybe it balanced it out. *shrug* Sorry, I may be way off base, but figured I’d ask just in case. It seems fairly logical to me, but I’m not great with electronic stuff, either. LOL