Allison Econo Mode

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Allison Econo Mode

Home > Discussion Forum > Mechanic's Corner - Transmissions

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All Messages in Thread	Author	Date
Allison Econo Mode	J. Mizell	3-7-07
I recently acquired a low mileage 93 Holiday Rambler Endeavor diesel pusher with a 6 speed Allison world transmission. My question - the electronic shifter shows an "economy mode" with a button to put in or take it out of economy mode. However, according to the tachometer, there is no change in rpms when I engage or disengage this mode. Does anyone know what should be happening?
Re: Allison Econo Mode	Jeff	6-30-07
I have a '95 and this 'econ mode' just changes the shift points of the trans. Best used on flat ground on the freeway.
Re: Allison Econo Mode	RLewis	1-11-08
The computer has two calibrations for engine RPM.when in eco mode the calibration drops approx.200RPM below performance mode which is the normal cal.this makes the trans upshift sooner.Maybe some better mpg,but also low power.