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Spark Plugs and Wires

Where are the spark plugs located on a 1997 Infiniti J30?


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July 04, 2008 6:04PM

Underneath the coil atop each cylinder between the intake manifold ports. Unbolt the coil bracket assembly from the intake manifold by removing the two bolts (I think it's 12 or 14mm) and the spark plug will be in view. Use 5/8th inch Plug socket and replace only with OEM plugs. NGK brand PFR5G-11 Platinum.