Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.

Check all clamps, and make sure they are properly positioned and tightened.

A/T Secondary Shaft Sealing Ring Replacement (A/T)
The sealing rings are synthetic resin with chamfered ends. Check the
condition of the sealing rings, and replace them only if they are worn,
distorted, or damaged.
For a better fit, squeeze ...
Output Shaft (Countershaft) Speed Sensor Replacement (M/T)
M/T
Raise the vehicle on a lift.
Disconnect the output shaft (countershaft) speed sensor connector (A).
Remove the output shaft (countershaft) speed sensor (B).
...
Fuel Information
■ Fuel recomme
Unleaded gasoline, pump octane number 87 or higher
Use of lower octane gasoline can cause a persistent, heavy metallic knocking
noise
that can lead to engine damage.
■ ...