Toyota 90919-01195 Plug, Spark

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Use a twisting motion on the boot until it is firmly seated on the end of the spark plug.

Spark plug replacement for four-cylinder PZEV models requires a spark plug socket with a rubber grommet, a wire-type feeler gauge, and a torque wrench. When replacing the plugs, ensure they are iridium-tipped and adjust them to the proper gap. Check for defects in the new plugs and do not adjust the gap on iridium spark plugs. Remove the engine cover(s) and disconnect any interfering hoses or components. Detach each ignition coil assembly from the spark plugs, working on one plug at a time. Use compressed air or a bicycle pump to remove dirt or foreign material. Remove the spark plug using the appropriate socket and extension. Compare the old plugs to determine the engine's running condition. Apply anti-seize compound to the spark plug threads and use a piece of rubber hose to aid in insertion. Attach the ignition coil assembly to the new plug. Repeat the process for the remaining spark plugs, replacing them one at a time to avoid mixing up the wires.

Remove the retaining bolt, disconnect the electrical connector, and detach the individual coils.

Remove the upper intake manifold.