See also:

Spark Plugs
Make sure to install new spark plugs of the correct heat range. ...

Vacuum, Crankcase Ventilation Hoses
Inspect the surface of hoses for evidence of heat and/or mechanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasions, and excessive swelling indicate deterioration. Particular att ...

AUX, USB AND iPod® PORT
If your vehicle has an aux and/or USB(universal serial bus) port or iPod port, you can use an aux port to connect audio devices, a USB port to plug in a USB, and an iPod port to plug in an iPod. ...