Thursday, May 26, 2011

How to Change the Spark Plugs in a 1999 2.4 L Altima

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Nissan introduced the mid-sized Altima in the 1993 help year. The Altima received its prototypal redesign in the 1998 help year, as Nissan slightly restricted its appearance to modernize the sedan. The 1999 help assemblage Altima came fitted with a 150-horsepower, 2.4-liter four-cylinder engine. Nissan recommends exchange the platinum-tipped flash plugs in the 1999 Altima every 60,000 miles to help ready the engine streaming smoothly. While exchange these flash plus, it is prizewinning to inspect and change the kindling wires as needed.

Difficulty: Moderate Instructions Things You'll Need
  • Spark block notch tool
  • Ratchet
  • Spark block socket
  • 6-inch extension
  • Torque wrench
    • 1

      Check the notch on all quaternary newborn FR5-AP10, or equal flash plugs, using a flash block notch tool. Nissan recommends that the Altima's flash plugs have a notch of 0.037 to 0.041 inches. Replace some incorrectly gapped plugs for newborn ones, as these platinum-tipped plugs are not adjustable.

    • 2

      Open the Altima's cowl and post the flash block wires on top of the engine. Remove digit flash block accommodate by grabbing the thick, foam boot on the engine side of the accommodate and pulling ascending with a winding motion.

    • 3

      Inspect the garbled flash block accommodate for some defects, much as brittleness, cracks or extremity visual aging. Replace the flash block wires as a rank ordered if some defects exist.

    • 4

      Remove the older flash plug, using a ratchet, 6-inch spreading and a flash block socket. Pull the older block from the flash block socket and append a newborn plug. Hand-tighten the newborn flash block into the engine, using a flash block socket and 6-inch extension.

    • 5

      Connect a force motion to the 6-inch spreading and flash block socket, and administer 14 to 22 foot-pounds of force to the flash plug.

    • 6

      Repeat Steps 2 finished 5 until you change all quaternary flash plugs.

    • 7

      Close the Altima's hood.


  • Car Repair & Maintenance

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