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6.7L Diesel – Foreign Object Inspection During Engine Or Turbo Charger Repairs
Some 2011-2017 6.7L diesel engine and/or turbo charger failures may leave foreign objects in the intake, exhaust, Charge Air Cooler (CAC) and Exhaust Gas Recirculation (EGR) system.
When replacing or repairing an engine it is important to inspect and clean the intake system, exhaust manifolds, EGR system and inspect the exhaust side of the turbo using a borescope
.
Turbo charger failures also require inspection.
Compressor side (air intake) failures require the CAC system to be inspected.
Metal debris in the CAC requires the CAC to be replaced (refer to WSM section 303-12).
Turbine side (exhaust) requires the Diesel Oxidation Catalyst (DOC) to be inspected and cleaned.
Failure to inspect these components for debris may result in repeat failures.
Note: the turbo charger should not be disassembled for inspection.
