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2008 Dodge Ram 4500 Chassis Cab
Reliability tier: verified - see /disclosure/
Engine: 6.7L ISB (Cummins, 6.7L)
DPF-only era: EGR + DPF, no SCR/DEF; chassis-cab calibration - injector/hardware service PNs differ from the pickups
Applicable failure modes (13)
- CCV breather filter clogging
- DPF clogging / regeneration problems
- EGR cooler failure
- EGR valve sooting / failure
- Exhaust manifold cracking
- Fan clutch failure (overheat while towing)
- Lift pump / fuel delivery weakness
- Grid heater 'killer bolt' ingestion
- Head gasket failure (tuned / overheated trucks)
- Injector 'chuffing' / seal blow-by
- Fuel dilution of engine oil (failed regens)
- Holset VGT turbo sticking / actuator failure
- Water pump failure
Applicable parts (20)
- 6.7 Cummins CCV Breather Filter Element
- 6.7 Cummins Spec Coolant + SCA
- 6.7 Cummins DPF Assembly
- 6.7 Cummins EGR Cooler (2007.5-2009 design)
- 6.7 Cummins EGR Valve
- 6.7 Cummins Spec Engine Oil (CJ-4/CK-4 15W-40 case)
- 6.7 Cummins Exhaust Manifold
- 6.7 Cummins Fan Clutch (electronic-controlled)
- 6.7 Cummins Fuel Control Actuator (FCA, on CP3)
- 6.7 Cummins Fuel Filter Set (water separator + engine)
- 6.7 Cummins Grid Heater Bolt Retention Kit
- 6.7 Cummins Head Stud Kit (rebuild/tuned builds)
- 6.7 Cummins Injector Set (2007-2012 chassis-cab calibration)
- 6.7 Cummins Injector Seal/O-Ring Kit
- 6.7 Cummins In-Tank Lift Pump (stock type)
- 6.7 Cummins Lift Pump System (high-flow upgrade)
- 6.7 Cummins Exhaust Manifold Gasket Set
- 6.7 Compound Turbo Seal/Bearing Service Set
- 6.7 Cummins VGT Electronic Actuator
- 6.7 Cummins Water Pump
Platform recipes (4)
- EGR system repair for a 6.7 Cummins with a failed valve and/or cooler (modes fm-c67-egr-valve / fm-c67-egr-cooler: soot-clogged valve, coolant-loss cooler)
- Fuel-supply health for a 6.7 Cummins on the CP3 common-rail (mode fm-c67-fuel-delivery): filter discipline, a healthy lift pump and a fresh FCA are what keep a $3-4k injection system alive
- Grid heater bolt fix for a 6.7 Cummins (mode fm-c67-grid-heater-bolt): the intake-grid heater fasteners corrode/shear in the aluminum manifold, causing cold-start smoke, hard starts and an air leak
- VGT turbo replacement for a 6.7 Cummins with sticking/failing variable-geometry turbo (mode fm-c67-vgt-turbo: VGT stick from soot, unison-ring wear, actuator faults)