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Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

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Old May 3, 2011 | 01:06 PM
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GuyWithA24Valve's Avatar
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From: Lynd, Minnesota
Default Allision
I have a buddy with a 2001 Duramax with an Allision with 215,000 miles on it. He said that sometimes when he's driving, it will shift up from 1st into 2nd and then shift right back into 1st. He let it sit over night and it was fine in the morning. Its not overheating and the fluid is full. Any ideas where to look?

---AutoMerged DoublePost---

Just realized i spelled Allison wrong
 
Last edited by GuyWithA24Valve; May 3, 2011 at 01:06 PM. Reason: Automerged Doublepost
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Old May 3, 2011 | 05:38 PM
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Has he done any mods to it at all?? tuner/programmer etc.?
 
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Old May 3, 2011 | 06:02 PM
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Originally Posted by BriteWhiteRam
Has he done any mods to it at all?? tuner/programmer etc.?
No it's all bone stock
 
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