2007 — 2009
6.7L Cummins Turbo Diesel
Diesel
While driving at highway speeds over uneven surfaces, check for any 'shimmy' or vibration in the steering wheel. In trucks of this age, it is common to consider the condition of the front-end steering linkage and track bar to ensure the steering remains precise.
Check this by observing the dashboard for any exhaust system warnings and noting the idle quality. On these early 6.7L Cummins engines, the Diesel Particulate Filter (DPF) and EGR systems may eventually require a professional cleaning or service to maintain optimal airflow.
During your test drive, pay close attention to the shift points of the automatic transmission under moderate acceleration. It is quite common for owners to budget for a transmission service or pressure adjustment, as the 68RFE unit is known to be sensitive to fluid quality when frequently used for heavy towing.
While accelerating from a stop, listen for a smooth, consistent turbo whistle and check for any lag. The Variable Geometry Turbo (VGT) can sometimes experience soot buildup in the sliding nozzle, which might suggest a future need for a specialized mechanical cleaning.
Complete service of the cooling system and replacement of both the primary and secondary fuel filters to protect the high-pressure common rail system.
Consider a valve lash adjustment for the Cummins engine and a comprehensive inspection of the serpentine belt and tensioner assembly.
Budget for a full drivetrain fluid refresh, including the transfer case and both differentials, alongside a detailed inspection of the universal joints.
Long-term planning should include a professional assessment of the fuel injectors and the water pump to ensure continued reliability for the next chapter of the truck's life.
Verify the replacement history of the Crankcase Ventilation (CCV) filter, which is a unique requirement for the 6.7L engine.
Confirm that the fuel filters have been replaced every 15,000 to 20,000 km to safeguard the sensitive fuel system.
Check the condition of the front ball joints and tie rod ends for any signs of play or grease leakage.
Ensure the transmission fluid is bright red and does not have a burnt aroma, indicating regular servicing.
Inspect the exhaust brake operation using the dash switch to ensure the VGT vanes are moving freely through their full range.
Estimated repair costs if issues arise
Depending on the car's history and fuel quality used, you might eventually need to budget for new injectors. This job involves precision diesel components that are vital for engine longevity and fuel economy.
If the steering feels less than firm in the future, the estimated cost in NZ for a heavy-duty front-end kit (ball joints, tie rods, and track bar) is a common consideration for heavy-duty Ram owners.
In cars of this age, it's common to consider either a professional cleaning or a replacement of the turbocharger unit if soot accumulation affects the variable geometry mechanism.
Future budget planning should account for potential specialized cleaning of the DPF or replacement of EGR components to ensure the truck meets local compliance and runs efficiently.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer