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Gdoubleoo · 09-12-2022, 01:56 PM

Yes it is still under warranty. I thought I might be able to do some quick checks before bringing it in 3 hours away.

Skip426 · 09-12-2022, 05:31 PM

Quote:

Originally Posted by Gdoubleoo

Its a cable shift , hooked to the electronic shifter pad in the cab. The cable moves the exact same distance whether its grabbing the reverse gear or not. Perhaps its not reading the pressure correctly as it changes from Drive to N to R. I am thinking this would show up as a code. My Tiffin has a Powerglide chassis.

Is there any indication on the dash shift pad of the manufacturer of the shift pad ?
It would be interesting to know if a shift cable that long has any service points ; for grease .

dwaugh10 · 09-12-2022, 09:27 PM

Nope, the cable doesn’t run all the way to the front shift pad. There is a unit mounted in front of the transmission that moves the shift cable. Don’t know who manufactures it.

David

Skip426 · 09-12-2022, 09:49 PM

Quote:

Originally Posted by dwaugh10

Nope, the cable doesn’t run all the way to the front shift pad. There is a unit mounted in front of the transmission that moves the shift cable. Don’t know who manufactures it.

David

Thanks for the additional info .
The Arens shifter , kb7uxe , and I ; thought you had , maybe manufactured by the same company .
I'll do some digging around .

If at all possible , a picture of the shifter on the dash and the under chassis unit , would be a big help .

Gdoubleoo · 09-13-2022, 09:15 AM

Regular shifter pad. Notice it is in diagnostic mode and not showing any codes.
The shifter cable is about 2 feet long and goes into a rectangular electrical box mounted on rear axle.

twinboat · 09-13-2022, 09:36 AM

Are your engine RPMs set low enough ?

Gdoubleoo · 09-13-2022, 10:35 AM

I have been thinking about that as well and have not paid attention to it . The high idle is definitely off, and mh does not seem to be idling very high (650-750 rpm?). Any idea what the cutoff is?

Skip426 · 09-13-2022, 10:55 AM

Quote:

Originally Posted by twinboat

Are your engine RPMs set low enough ?

Quote:

Originally Posted by Gdoubleoo

I have been thinking about that as well and have not paid attention to it . The high idle is definitely off, and mh does not seem to be idling very high (650-750 rpm?). Any idea what the cutoff is?

Gdoubleoo; is your coach engine a Cummins 340 hp ISB ?
If so idle speed is a function of the Cummins ECM and not adjustable .
Idle too high , shift to drive would be an issue too.

I believe I've found the manufacturer of the shift mechanism .

Orscheln Products . ESAS ( Electronic Shift Actuator System )
Connection from the control module to the transmission can be either , rod or cable .
So far I can't find any info on possible adjustments or troubleshooting .

I had thought Arens ; a Curtis-Wright product , was the only available remote shifter for the 2100/2500 series Allison .

I'll post again it I find more info .

dwaugh10 · 09-13-2022, 11:06 AM

Quote:

Originally Posted by Skip426

Thanks for the additional info .
The Arens shifter , kb7uxe , and I ; thought you had , maybe manufactured by the same company .
I'll do some digging around .

If at all possible , a picture of the shifter on the dash and the under chassis unit , would be a big help .

Here's pics of the shifter etc

David

Skip426 · 09-13-2022, 11:31 AM

Thanks David for the additional pictures .

I believe the system to be , the ESAS , I described in my last post .

Info from the parts tag ( Yellow box I added to your picture ) could confirm .

I will keep digging for troubleshooting info .

Gdoubleoo · 09-13-2022, 11:35 AM

yes that is exactly what I have. Transmission has 8000 miles on it, could it be that it is still learning on how I shift? I have heard about this before. Or maybe the mechanism / valve system that changes the tm from d to r is dirty from when it was built. I have changed the tm filter , and will try it again. thanks

Skip426 · 09-13-2022, 12:01 PM

Shift from neutral to , drive or reverse is mechanical .

Learned shifting; from driver input ( throttle use ) is the part of the electronic controls for up/down shifting once trans is in drive and moving .

EDIT: I do see some black over spray on the cable shaft , that might be an issue .
Only 8,000 miles has the shifting been like this since new ?

Gdoubleoo · 09-13-2022, 02:43 PM

I suspect it has done this from new , I bought it at 6000 miles . It is not a problem that shows up all the time , past owner may have missed informing me...
The picture you were looking at is not my trnasmission , it is on page 1.

Skip426 · 09-13-2022, 05:28 PM

Quote:

Originally Posted by Gdoubleoo

I suspect it has done this from new , I bought it at 6000 miles . It is not a problem that shows up all the time , past owner may have missed informing me...
The picture you were looking at is not my transmission , it is on page 1.

OK, I see my mistake .

I'll keep looking for any install, adjustment or troubleshooting info.