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Old 09-27-2020, 12:33 PM   #1
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Shifting into neutral at traffic lights?

Just trying to understand my Cummins /Allison 2500 transmission on my Fleetwood Pase Arrow motorhome.

The owner's manual seems to imply that when coming to a stop in traffic such as at a light, once the transmission has down shifted to first, you should put it in neutral and hold the coach with the brake until you're ready to move again. Is this right?
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Old 09-27-2020, 12:37 PM   #2
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I would not shift to neutral until stopped.

And, yes, that will lessen transmission temps, particularly if long waits.
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Old 09-27-2020, 04:37 PM   #3
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Only if you will be sitting there a long time. I've had an Allison 1000, 3000, and this 4000. The only time any have over heated was the 3000 when stuck in traffic behind a wreck. I put it in N and it cooled right down.
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Old 09-27-2020, 05:37 PM   #4
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Do it only if waiting for a train if you're the first in line. Also set your brake. A full-size city bus was pushed onto the tracks in front of a train some years back. It was rear-ended by a full-size pickup at high speed when the force of the collision rocked the driver's foot back off the brake pedal.
Otherwise, it's unnecessary but can give your right leg a rest or prevent you from moving if you get distracted and let up on the brake.
2005 Monaco Knight 40PLQ; Cummins 8.3L ISC330, Pacbrake, Allison 3000, Roadmaster RR8R, ScanGauge D, 2004 Kawasaki Vulcan VN750(Geezer Glide) on a Versahaul carrier pulling a 2013 Kia Soul+; 2.0L, 6 speed Sport shifter(great car) on an American Car Dolly(great dolly.)
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Old 09-27-2020, 05:55 PM   #5
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Funny that Allison didn't put the same time limit in your manual as in the one for my 3060 " Max 5 mins idle in gear " .

JMHO: Shift to neutral not required at a regular stop light situation . Particularly if your coach has a trans temp gauge .
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
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Old 09-27-2020, 06:02 PM   #6
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Don't you have enough to do while driving ?

Looking and reaching for a shift panel is a distraction.

They use torque converters, and not clutches, for that.
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Old 09-27-2020, 06:12 PM   #7
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Do you shift your other vehicles into neutral when stopped for light etc

I have only done that when waiting on a train and pilot car at construction sites ....wrecks I turn vehicle OFF
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Old 09-27-2020, 07:10 PM   #8
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Yes, well Old-biscuit, my other vehicles have a (P)ark position on the transmission. When I saw that wasn't there, I immediately began to wonder what else might be different about this transmission and drive train.
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