How to Change Spark Plugs in a 2019 Toyota Highlander - D4S V-6 Engine
GunBlue490 GunBlue490
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 Published On Jun 10, 2023

My quote for the 60,000 mile service maintenance cost was $746.00, most of which is for the spark plug replacement labor cost. That's more than I am willing to lay out for what must be within my capabilities!

The rear three plugs are hidden beneath the intake plenum, which can be a daunting prospect for the person accustomed to typical spark plug changes. Though I had never tackled this task before, I was willing to proceed, armed with the study I had done on various channels for similar, though not exactly the same engine configuration. Come with me and see how it went!

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