2001 — 2012
2.4L I4 (KA24DE)
Petrol
Listen for a rattle or metallic clatter during cold start and while idling. | Description: KA24DE engines are prone to timing chain guide wear; a loud rattle indicates the guides have failed or the tensioner is worn, requiring immediate attention.
Perform several gear shifts under load and check for 'hunting' or slipping in the automatic transmission. | Description: The RE4R01A transmission in these vans works hard. Dark fluid or delayed engagement suggests a costly rebuild is imminent.
Drive over speed bumps or uneven surfaces to check for 'clunking' from the front end. | Description: Lower ball joints and sway bar bushings are high-wear items on the Como due to its weight and commercial use in NZ.
Check the floorboards under the carpet and the door sills for any signs of moisture or oxidation. | Description: Early E25/Como models can suffer from rust in the step-wells and window seals if they were used in coastal areas or for trade work.
Intermediate service: Full synthetic oil change, tire rotation, and inspection of front brake pads for heavy-load wear.
Major fluid refresh: Replace automatic transmission fluid (flush), differential oil, and engine coolant to prevent overheating.
Critical component overhaul: Replace spark plugs, inspect timing chain tensioners, and replace the water pump and thermostat.
Verify the condition of the valve cover gasket; oil leaks into spark plug wells are common on the KA24DE.
Inspect the radiator for cracked plastic end-tanks, especially where the top hose connects.
Clean the Mass Air Flow (MAF) sensor and Throttle Body to ensure stable idle and fuel economy.
Check the rear leaf spring bushings for cracking or perishing.
Lubricate the sliding door tracks and check the roller bearings for flat spots.
Estimated repair costs if issues arise
Preventative or corrective maintenance for guide failure.
Full rebuild if the unit is slipping or burnt.
Essential to prevent head gasket failure on the 2.4L block.
Noticed something inaccurate or missing?Suggest an edit→
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