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Topic: Allison shift pad (Read 2810 times) previous topic - next topic

Re: Allison shift pad

Reply #25 –
Have the pad in the house,will warm it up and try once again,think it just had too many touches.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Allison shift pad

Reply #26 –
Quote from: turbojack –
I am assuming you made sure engine was at slow idle when you tried to shift into gear. If idle is too high it will not let the transmission go into gear


Normally if too high an idle speed, the "D" will just flash and indeed it will not go into gear.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Allison shift pad

Reply #27 –
Goes into reverse ok,getting from there to nuetral takes a few presses,no going into d.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Allison shift pad

Reply #28 –
Had the same issue...called John in TX He rebuilt my selector pad and all is well....It's a click pad no  more "mush"
Hans & Marjet
1995 U300 "Ben" (#4719)
3176B Cat,4060HD,Jake
SKP#139131
Motorcade#17579
2006 Honda Element (towed)

Re: Allison shift pad

Reply #29 –
Update,sent to John in Tx after talking to him.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Allison shift pad

Reply #30 –
Quote from: John44 –
Update,sent to John in Tx after talking to him.

You'll be glad you did, David!
1996 36' U295 Build #4879 Motorcade #18088
2007 Jeep Liberty 4x4 FMCA #F474816
Foretravel Mid-South
There's no happy like Foretravel happy!

Re: Allison shift pad

Reply #31 –
We also sent our shift module to TX for a rebuild. Being from Michigan the cooler temps made changing options slow and irritating. Glad we did the rebuild.
Bill & Jan Velting
1998 U320 36'    2014 Xtreme facelift
build #5339  MC#17207
current toad: 2014 Cadillac SRX

Re: Allison shift pad

Reply #32 –

After suffering 6 years ago from the dread "Snake Eyes" we sent our touch pad and CPU off to Transmission Instruments for a rebuild.  We have had zero transmission control problems since then.

No start, with Allison "snake eyes" (Problem Solved)

Based on our experience, and other reports on this Forum, there seems to be some correlation between low temperatures and problems with the Allison control system.  After we got our refurbished components back and reinstalled, I decided it could not hurt anything to always keep the CPU and touch panel warm in cold weather.  To this end, during the winter months when the coach is parked, I place a small electric heater on the floor in front of the driver seat.  If cold outdoor temps (below 40 degrees F) are forecast I turn the heater on and let it run continuously, gently blowing warm air in the direction of the CPU.  I strive to just keep the CPU slightly warm to my touch.  It is my thinking that doing so might prevent any moisture condensation in the metal CPU housing, and might possibly help avoid future problems.

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1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Allison shift pad

Reply #33 –
Got the pad back,$499 for the rebuild,works great,great service from John and family.
96 U270 BUILD 4810
85 380SL
Drummonds TN.