2005 — 2010
4.0L V6 VQ40DE
Petrol
Check the transmission fluid quality by pulling the dipstick while the engine is running. | Advice: In some R51 models, there is a known concern regarding the 'Strawberry Milkshake of Death' where the radiator internals leak coolant into the transmission lines. Ensure the fluid is a clean, bright red, not a murky pink or milky consistency.
Listen for a rattling sound from the engine bay during a cold start. | Advice: It is worth paying attention to the timing chain tensioners. If you hear a brief metallic rattle that settles once the oil pressure builds, it may be a sign that the tensioners are reaching the end of their service life.
Test the suspension by driving over varied road surfaces at low speeds. | Advice: Given the age of these vehicles, the lower control arm bushes and ball joints often show signs of wear. Listen for any clunking noises that might suggest these components are due for a refresh.
Operate the four-wheel-drive dial through all modes (2WD, Auto, 4H, 4L) while stationary. | Advice: Ensure the transfer case shifts smoothly. It is common for the electronic actuators to get a bit stiff if they haven't been used regularly, so verify that the lights on the dash confirm the shift to each mode.
Consider a full coolant flush and inspection of the radiator integration with the transmission.
A common point to review the suspension dampers and steering rack bushes for perishing.
Recommended to have a professional look at the alternator and accessory drive belts, as these often reach their practical limit around this point.
Keep up with 10,000km engine oil changes using high-quality full synthetic oil to look after those VQ40DE timing components.
Regularly clear out the cabin air filter to keep the air-conditioning system performing well in our humid NZ summers.
Inspect the CV joint boots for any tears or grease leaks, especially if the vehicle has been used for light off-roading.
Check the brake fluid moisture levels annually, as this is often overlooked but crucial for safety.
Apply a light protectant to the underbody if you live near the coast to keep the chassis in good condition.
Estimated repair costs if issues arise
If this component needs attention in the future, it is a significant job requiring engine-out or transmission-out work depending on the approach. It is worth keeping a buffer for this internal engine maintenance.
To avoid the aforementioned transmission cooling issues, many owners choose to proactively replace the radiator with a newer unit that doesn't have the internal cross-contamination risk.
Depending on the car's history, you might eventually need to budget for a complete suspension overhaul to bring that firm, safe handling back to the vehicle.
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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