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Old 03-09-2017, 08:20 AM   #15
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I also have heard the split oil pan seal tends to leak... IF thats what it is,,, (from what I have seen on a Duramax forum) they need to let the sealer setup 24 hrs before using... GRRRRR I'll keep an eye on mine... IF its just a small seep,,, I personally wouldn't postpone a schedualed vacation... I would just check the leak and oil level every stop... You might even check the pan bolts for being tight... Might help prolong the repair till you get back... DON'T overtighten !!!! These oil pans are aluminum... My opinion....

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Old 04-20-2017, 07:45 PM   #16
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I just had the lower oil pan resealed on my 2013 GMC Duramax LML. My GMC dealer did the work under the powertrain warranty. My advisor said it is a common repair for the Duramax and it was not a huge job. They did not have to remove the transmission to reseal the pan.

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Old 09-17-2017, 04:25 PM   #17
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Had the same problem on my 2008. It took about 4 hours to get it fixed. Waiting for the sealant to dry before firing the engine took 2 of the four hours. No problem since. Good luck.

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Old 10-25-2017, 08:44 AM   #18
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I removed the oil pan on my 06 Duramax to fix a leaky pan gasket a couple of years ago. As I remember it was pretty easy, but it did require removing a motor cross brace. You should be able to crawl under the truck and see the oil pan bolts.
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Old 12-06-2017, 01:48 PM   #19
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The oil pan leak is covered by a Little Known Non published RECALL. My 2013 had the same thing and IT WAS FIXED FOR FREE!!!

Call your Chevy Dealer...
Mike, Betty & Sophie (Guard Cat)
Full Timers from the Great Lakes State of Michigan
2013 Silverado 3500HD Duramax Diesel & 2013 Cedar Creek Silverback

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Old 12-16-2018, 06:58 PM   #20
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That engine has an upper and lower oil pan. The upper one is aluminum and the lower is steel. I have seen several lower pan leaks which can be resealed without removing trans. Oil dye can be used to diagnose leaks and confirm where the leak is. Never saw an upper pan leak or rear main seal leak through 15 years of working on Dmax's.

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leak, seal

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