2009 — 2024
5.7L HEMI V8 (Standard)
Petrol
Listen carefully during a cold start for any rhythmic ticking sounds coming from the front wheel wells, which might suggest that the exhaust manifold bolts have stretched or snapped—a common occurrence in some HEMI engines that you may need to address.
While cruising at steady speeds between 60-80 km/h, feel for any slight shudders or hesitations as the truck transitions into 'ECO' mode; this helps you assess the health of the Multi-Displacement System (MDS) and ensure it is operating smoothly.
Engage the 4WD system (4-Auto or 4-Lock) on a suitable surface and perform slow, tight turns to listen for any binding or groaning from the transfer case, ensuring the driveline components are in good health.
Operate the Uconnect touchscreen through various menus and the reverse camera multiple times to check for lag or screen 'ghosting,' as these infotainment units can sometimes show signs of electronic wear in older 4th Gen models.
This is a great time to consider a comprehensive spark plug change, as the 5.7L HEMI utilizes 16 plugs that are key to maintaining fuel efficiency.
At this stage, many owners plan for a full cooling system flush and a transmission service for the ZF 8-speed unit to ensure long-term reliability.
Consider inspecting the suspension bushings and ball joints, as the weight of the truck can lead to natural wear on these components over time.
For high-mileage heroes, it is wise to budget for a preventative replacement of the water pump and a thorough inspection of the drive belt tensioners.
Verify the use of high-quality 5W-20 synthetic oil, which is essential for the proper operation of the MDS lifters.
Inspect the rear differential fluid levels, especially if the vehicle has been used for heavy towing across NZ's hilly terrain.
Check the condition of the cabin air filter to ensure the HVAC system is performing efficiently for NZ's variable climate.
Examine the brake rotors for any signs of thinning or warping, as stopping a 2.5-tonne truck requires healthy braking hardware.
Ensure the tailgate cables and hinges are lubricated and free of rust to maintain smooth operation of the rear cargo area.
Estimated repair costs if issues arise
Depending on the truck's service history, you might eventually need to budget for a full set of 16 spark plugs. The job is labor-intensive due to the engine layout, but vital for smooth idling.
If that common ticking sound develops, the estimated cost in NZ covers the replacement of the bolts and potentially machining the manifold to ensure a flat seal against the engine block.
While often labeled as 'filled for life,' most specialists recommend a pan and fluid change to protect the internals. This involves a specialized filter integrated into the pan itself.
Future budget planning should account for the heavy-duty nature of these parts. Using high-quality local replacements ensures the truck remains safe for heavy loads or towing.
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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