2nd Gen RAV4 Maintenance | Changed Spark Plugs @ 258,690 Miles | 2AZ-FE/1AZ-FE | What Did We Find?

#ToyotaRAV4 #SparkPlugChange #TorqueTipsGarage In this video, we replace the spark plugs on our 2004 Toyota RAV4 with the 2AZ-FE engine as part of an ongoing oil consumption investigation. This RAV4 has reached 258,690 miles, and we wanted to inspect the condition of the existing plugs to see what clues they could provide information about how the engine has been running. We remove all four spark plugs, inspect the combustion condition of each cylinder, compare the old plugs against the new ones, and install a fresh set of NGK G-Power Platinum spark plugs (BKR6EG). Interestingly, the old Denso Iridium plugs were burning very clean, with no major signs of excessive oil contamination or abnormal combustion. This inspection helped narrow down the search as we continue diagnosing the RAV4's oil consumption issue. 🚗 Vehicle: 2004 Toyota RAV4 ⚙️ Engine: Toyota 2AZ-FE / 1AZ-FE family 📍 Mileage: 258,690 miles 🔩 New Spark Plugs: NGK G-Power Platinum BKR6EG We also previously replaced the PCV valve on this RAV4, which is another important step when diagnosing oil consumption issues: ➡️ Toyota RAV4 PCV Valve Replacement Video:    • 2004 Toyota RAV4 Burning Oil? Easy PCV Val...   This vehicle is part of an ongoing high-mileage Toyota maintenance series where we document repairs, inspections, troubleshooting, and preventative maintenance. If you enjoy real-world automotive diagnostics, DIY repairs, and high-mileage Toyota maintenance, consider subscribing and following along with this RAV4 journey. 🔧 In this video: 00:32 – Removing the first spark plug and cylinder inspection 01:19 – Inspecting the first Denso Iridium plug condition 02:26 – Removing additional spark plugs and checking condition 04:14 – Dealing with stubborn connectors and brackets 05:30 – Final spark plug inspection and possible original plugs 08:50 – Comparing old plugs vs new NGK G-Power Platinum BKR6EG plugs 09:46 – Spark plug installation tips and crush ring explanation 13:15 – Proper tightening and avoiding damage to aluminum cylinder heads 14:27 – Reinstalling ignition coils 15:20 – Reassembly of connectors, air box, and air filter 19:45 – First startup after new spark plugs 20:08 – Recording mileage and maintenance history 22:07 – Oil consumption diagnosis update and next steps ⚠️ Disclaimer: This video is for informational and educational purposes only. Always follow proper safety procedures, use the correct tools, and consult your vehicle's factory service manual for specifications. Automotive repairs involve risks including injury, vehicle damage, or incorrect installation. Perform any maintenance or repairs at your own risk. #ToyotaRAV4 #2AZFE #SparkPlugChange #ToyotaMaintenance #DIYAutoRepair #NGKSparkPlugs #HighMileageToyota #RAV4Repair #ToyotaDIY #OilConsumption #CarMaintenance #SparkPlugReplacement #1AZ-FE #TTG