2009 — 2012
3.7L PowerTech V6
Petrol
Open the oil filler cap before cold start to check for thick black sludge, as this engine suffers from narrow oil passages that starve overhead cams if generic oils are used.
Drive over local speed bumps at low speed, checking for front-end metallic clunks or memory steer that indicates premature failure of the factory upper control arms or ball joints.
Monitor the 4-speed automatic transmission behavior under light-throttle gear changes, specifically checking for any sudden hesitation or shudder between second and third gear.
Inspect the steering transfer box and custom linkages under the bonnet for any rubbing or play introduced during the post-import Right-Hand Drive (RHD) engineering conversion.
Perform a comprehensive engine oil and filter service. Grease steering linkages and custom RHD track bars, and check differential fluid levels.
Flush and renew the cooling system with correct HOAT coolant to prevent overheating. Perform a transmission fluid service including replacing both internal filters.
Replace all spark plugs (this engine is highly sensitive to plug gap), replace the PCV valve to manage crankcase pressure, and proactively replace the water pump.
Enforce strict 5,000km to 7,500km oil change intervals with high-quality 5W-20 oil to prevent catastrophic PowerTech oil sludging.
Inspect the plastic radiator side tanks and top coolant hoses regularly for hairline cracks or weeping, as this engine does not tolerate overheating.
Ensure only licensed Chrysler ATF+4 fluid is used in the transmission; using generic multi-vehicle fluids will cause immediate clutch wear.
Regularly lubricate all steering conversion grease nipples installed during the RHD conversion process at every oil service interval.
Check the rear passenger footwells and headliner near the window for dampness caused by a failed third brake light gasket seal.
Estimated repair costs if issues arise
Replacing worn factory front upper control arms, ball joints, and tie rods with heavy-duty aftermarket greasable units to pass the NZ WoF.
If the 3.7L overheats, the aluminum heads warp easily. Requires full head removal, machining, new gaskets, and new head bolts.
Replacement of the internal solenoid block, dual filters, pan gasket, and fresh ATF+4 fluid to cure shifting issues or gear hunting.
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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