Question: LML head gasket guide? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY. is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
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Old 02-24-2020, 02:56 PM   #1 (permalink)
Sparkplug Hunter
Join Date: Jan 2014
Location: ND
Posts: 1
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LML head gasket guide?

My 2012 finally decided to join the failed HG club at 225k and I've been trying to find a decent guide as to what the job entails but haven't been very successful. There used to be one posted on but the site is no longer active. On top of not wanting to give the dealer way more money than I believe the job is worth, I will need my pickup back before they can get to it (multiple shops around here are 6+ weeks out). I did the CP3+ conversion and EGR delete about 15 months ago so some of the tougher junk on top is gone, but has anyone had any luck using the factory service manual? Or just winging it? Or have I just been unsuccessful locating a guide/write-up in my searches?

2012 LML Duramax
CP3+ conversion and EGR delete

Last edited by OkDually; 02-24-2020 at 03:19 PM. Reason: prefix/sig
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