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This DIY video shows owners of the 1st generation 2013 (JX35), 2014, 2015, 2016, 2017, 2018, 2019 and 2020 Infiniti QX60 SUV how to change the spark plugs in the VQ35DE 3.5L V6 engine. (Note - I only check one of the front spark plugs since this vehicle doesn't have very many miles. The spark plugs are not due to be changed until 105,000 miles. To access the rear three ignition coils, you'll have to remove the intake manifold.)

Check out the DIY guide for changing the spark plugs in a first generation 2013 (JX35) to 2020 Infiniti QX60 SUV -
https://www.paulstravelpictures.com/Infiniti-QX60-Spark-Plugs-Replacement-Guide/index.html

Here are all of the DIY repair and maintenance tutorials for the 1st generation 2013 to 2020 Infiniti QX60 luxury SUV (made by Nissan) -
https://www.paulstravelpictures.com/Articles/2013-2020-Infiniti-QX60-DIY-Repair-Maintenance-Guides.htm

Owners of other Infiniti and Nissan vehicles such as the JX35, Q50, Q60, QX50, QX80, Pathfinder, Murano, Rogue, Armada, Kicks, Frontier, Titan, NV, NV200, 370Z, GT-R, Leaf, Maxima, Altima, Sentra and Versa might also find these DIY instructions to be helpful.