DEBOSS GARAGE
Cummins Swaps, Car Repairs, Classic Restoration
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Duramax Diesel Common Problems - Blown Head Gaskets, Bad Fuel Injectors & More

This GMC 6.6 Duramax LB7 has been through hell, had had about every common problem with the engine, and then some. We show you how to fix head gaskets, test fuel injectors, and how to rebuild the top end!

00:12 GMC 6.6 Duramax LB7
04:39 Engine Teardown
05:06 Injector Testing
06:37 Removing The Head
07:27 Coolant Leak
07:48 Rebuilding With Studs
09:29 Bleeding Cooling & Fuel Systems
10:12 Start & Test Drive