Cold weather Alison tranny failures - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 30 (permalink) Old 02-14-2008, 02:02 AM Thread Starter
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Cold weather Alison tranny failures

In Alberta Canada we had a mass of Alison tranny failures in the last cold weather snap - 500 + trucks out of commision, I heard the # is higher & up to two months wait time on Alison trannys, 6 speeds

When the truck goes into high idle in park the trannys were burning up, no oil circulating do to some small solonoid or what ever freezing off, fix for now put your truck in neutral to idle to save the trannys.:mafia
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post #2 of 30 (permalink) Old 02-14-2008, 02:45 AM
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500 trucks?!? Holy moly!

I wonder what solenoid was hanging up?
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post #3 of 30 (permalink) Old 02-14-2008, 11:20 AM
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Jesus, where did you find out about this?
post #4 of 30 (permalink) Old 02-15-2008, 12:32 AM Thread Starter
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A service hand for a large oilfield company in Alberta, BC, Sask was driving a rental Ford V10 -which he hated - asked him why he was driving a rental, said his company 08 3500 Duramax/Alison burn up his tranny, took it in to see what was wrong with it - was in limp mode, the tech went out & pulled his dipstick, smelled the horrible burnt tranny fluid ( His words ) came back in & stated another Alison down get in line - up to 2 months wait times.The company he works for have quite a few down, thats just one company & have heard of way more.That is how I first heard of this, then started asking around & found out that there in almost every shop in Alberta. Not kidding.

On a note most of these trucks were in the Alberta oilfield, they idle for extreeme periods cold or warm out.

My wifes 07 Duramax/ Alison had an issue in the exteeme cold as well last week, she started it up & let it idle only -38 that morning started heading for town & a service light came on then she could only travel at 40 kph max, took it into the garage, waiting to see whats wrong with this one now, hopefully not the tranny.It was awesome untill this.
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post #5 of 30 (permalink) Old 02-15-2008, 02:09 PM
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Found on another site

Quote:
The recall on the tranny in cold weather is apparently caused by too much pressure in the allison during extreme coldweather starts. It's an LMM thing but the results are cracked housings. Recall is a program change to limit pressure on cold weather starts.

Life changes, so roll with it, not against it.
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post #6 of 30 (permalink) Old 02-15-2008, 09:35 PM
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WOW, good thing I live in Florida If I saw -35 weather my head would crack
post #7 of 30 (permalink) Old 02-15-2008, 10:45 PM
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Funny this happened to a transmission that's been in the field running like a champ for over a decade in medium duty trucks all over the world.

So it's an LMM thing only? LBZ, LLY not affected?
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post #8 of 30 (permalink) Old 02-15-2008, 10:57 PM
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Apparently some LBZ's are affected. Watch for leaking fluid apparently caused by a poor crimp on the connectors.

Life changes, so roll with it, not against it.
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post #9 of 30 (permalink) Old 02-16-2008, 01:42 AM
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Crap. Here we go. At least it's an external line and I can keep an eye on them.
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post #10 of 30 (permalink) Old 02-16-2008, 11:33 AM
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Quote:
Originally Posted by Rcannon
Apparently some LBZ's are affected. Watch for leaking fluid apparently caused by a poor crimp on the connectors.
That's a long standing problem. Mine does it, every now and again. Seperate issued from cracked housings due to cold weather pressures.
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