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Allison auto?

Yahoo Message Number: 99291
Anyone know what function the mode button does On the Allison automatic key pad I've pushed it several times Sometimes the indictator light turns red sometimes green ? But no noticeable change Alan. 1999 CC intrigue 10906

Re: Allison auto?

Reply #1 –
Yahoo Message Number: 99292
Don't know about the green light,  but when I hit the econ button,  the red light comes on.  The way I understand it,  when in the economy mode,  the tranny downshift is delayed to keep the engine RPM  lower for a longer period to conserve fuel.

Larry, 03 Allure 30856

Re: Allison auto?

Reply #2 –
Yahoo Message Number: 99293
If you push the mode button that saves fuel in less hilly terrain. Don't use it when in mountainous areas. I live in SC and use it a lot because the terrain is flat. Check your owners manual under Allison and it will explain in detail.

Re: Allison auto?

Reply #3 –
Yahoo Message Number: 99296
As others have said, you won't notice much difference with Mode on unless try it in the correct terrain.  If you are in an area with rolling hills like parts of I-5 in the middle of CA you can turn it on and off and feel the difference.  In the mountains it just makes the engine work harder.

Bob

'05 Intrigue 11872
 

Re: Allison auto?

Reply #4 –
Yahoo Message Number: 99329
Correct. But really only makes a difference in rolling hills where the trans downshifts on small hills then upshifts, then downshifts, the upshifts. It keeps the trans from downshifting till the engine slows down to max peak torque.