Munchie
Member
- Joined
- January 1, 2008
- Messages
- 28
- Reaction score
- 2
- City, State
- Winnipeg, Manitoba
- Year, Model & Trim Level
- 2009 EB 4.6L V8 3V
2009 EB V8 4.6 3v with 6R80 tranny:
I've been having fuel mileage issues so been recording on the scan tool for a few trips and have addressed a few things (usual suspects) but it spawned a question about the tranny.
I happened to notice that when I am travelling at on the highway it cruises in 6th gear (1800 - 1900 rpm) and I turn off the O/D the scanner indicates it goes straight to 4th gear (not 5th) and about 3200 - 3300 rpm. Is this normal? I would have assumed it would have gone to 5th gear at about 2400 rpm with the O/D off.
If this is normal, than I assume that the 6R80 has 2 O/D gears not 1 like my old 5 speed and when I turn off O/D it turns off both 5 and 6?
Thanks for any info/help you can provide.
I've been having fuel mileage issues so been recording on the scan tool for a few trips and have addressed a few things (usual suspects) but it spawned a question about the tranny.
I happened to notice that when I am travelling at on the highway it cruises in 6th gear (1800 - 1900 rpm) and I turn off the O/D the scanner indicates it goes straight to 4th gear (not 5th) and about 3200 - 3300 rpm. Is this normal? I would have assumed it would have gone to 5th gear at about 2400 rpm with the O/D off.
If this is normal, than I assume that the 6R80 has 2 O/D gears not 1 like my old 5 speed and when I turn off O/D it turns off both 5 and 6?
Thanks for any info/help you can provide.