Why This 3.0 Duramax Took a Week to Tear Down & Lower MPG with additives?

In this episode of the 3.0 Duramax Podcast, I share what happened when I started tearing down a 3.0 Duramax engine and discovered four completely seized injectors. What should have been a straightforward teardown turned into a week-long battle involving penetrating oil, sledgehammers, cutting injectors apart, and eventually removing the cylinder head with the injectors still attached.We also discuss an important change to the 2026 Silverado and Sierra transmission cooler, answer 10 viewer questions, and cover topics including turbocharger failures, fuel additives, towing practices, oil drain plugs, fuel system concerns, and more.Whether you own an LM2 or LZ0, this episode is packed with real-world information from the dealership and the shop.🔧 Topics Covered:• 2026 transmission cooler changes• 4 seized injectors on a 3.0 Duramax teardown• Turbo cooldown after towing• LZ0 turbo failures• Fuel additives and fuel economy• Magnetic drain plugs• Tahoe/Yukon buying advice• Engine replacement vs resealing• MOTUL oil update• OTA update code P2002• Metal flakes in fuel filters📞 Have a question for a future podcast? (801) 209 9503Leave a voicemail using the number in the description or post your question in the comments.🌐 Duramax News:https://duramaxnews.com🛒 Parts & Upgrades:https://demonworkshop.comDiscount Codes:Banks Power - DemonWorksWeigh-Safe - DW10🎥 Subscribe for more 3.0 Duramax content, tech breakdowns, maintenance tips, and dealership insights.#Duramax #30Duramax #LM2 #LZ0 #Silverado #Sierra #Tahoe #Yukon #DieselTruckTimestamps00:00 Intro01:12 2026 transmission cooler changes03:05 My 3.0 Duramax teardown nightmare begins04:25 Four seized injectors discovered06:35 Upcoming LZ0 teardown and thrust bearing inspection07:40 Viewer Question #1: Archoil and fuel economy11:05 Viewer Question #2: Should you cool down the turbo after towing?14:05 Viewer Question #3: Turbo failure at 33,000 miles17:15 Viewer Question #4: Magnetic drain plugs and the new 2026 oil pan20:15 Viewer Question #5: Best Tahoe/Yukon years with the 3.0 Duramax22:00 Viewer Question #6: Engine reseal vs engine replacement24:05 Viewer Question #7: MOTUL oil update and oil analysis plans25:10 Viewer Question #8: P2002 OTA update issue and dealership charges26:20 Viewer Question #9: Metal flakes found during a fuel filter change27:35 Final thoughts and viewer questions

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Jaksot(36)

The Truth About 5 Micron Oil Filters (Nominal vs Absolute)

There's a lot of confusion surrounding oil filter efficiency, micron ratings, and the difference between nominal and absolute filtration. In this episode of the 3.0 Duramax Podcast, we're breaking it ...

26 Loka 14min

GM Finally Reveals 3.0 Duramax Failure Dates! Plus New Turbo line

GM has finally added build dates to its 3.0 Duramax LZ0 thrust-bearing failure bulletin. We also have an updated turbocharger oil feed pipe, a new aluminum radiator, and a viewer question about intake...

20 Loka 14min

Red Dyed Diesel in Your Duramax? GM Responds on Warranty!

The 2027 3.0 Duramax LZ0 Gen 2 has MORE changes than GM originally announced! In this episode of the Demon Works Podcast, Greg, a GM dealership technician, digs into newly discovered engine updates, i...

12 Loka 18min

Want Better MPG From Your 3.0 Duramax? Stop Buying This Stuff

Will an aftermarket part actually increase the fuel economy of your 3.0 Duramax? How can you get better MPG without wasting money on modifications that may never pay for themselves?In Episode 32, I br...

10 Loka 19min

Motul Results + 2027 Order Guide is out - 3.0 Duramax Podcast 31

This weeks podcast, we discuss the motul results and compare them to mobil1 and pennzoil. We discuss the fleet order guide that came out for the Silverado 1500 trucks plus much more.....https://www.de...

28 Syys 15min

GM Just Revealed Major 2027 3.0 Duramax Updates

GM has revealed several updates coming to the 2027 3.0 Duramax, including changes to the pistons, turbo vanes, next-generation NOx sensor, sealing, fuel injector corrosion protection, DEF system, and ...

20 Syys 29min

Your 3.0 Duramax MAP Sensor Could Be Causing Problems

In this episode, we take a closer look at the 3.0 Duramax MAP sensor, including what it does, why it gets dirty, where it’s located, and whether you should clean it or replace it.The MAP (Manifold Abs...

14 Syys 17min

Properly Fill Transmission with PPE Bypass Valve? Long Term Ownership for 3.0 Duramax?

Podcast 28 comes in with a discussion on long term ownership of the 3.0 duramax. Many people want to know if it's a great long term buy - I discuss that along with many other topics ....Blowzer on ama...

24 Elo 21min