Hello Eveyone, My 2000 Discovery "Service Check Engine" Light Came On, Took It to Autozone To Read The Codes I Got this Codes:

P0308
p0300
p1300

The Truck Runs Great,and Everything.The Auto Zone told me it was a Misfire Problem. What should I Change? What Brand Wires,Spark Plugs Should I Use? Thanks Everyone So Much Ya Are All Always a Huge Help!

 

Champion cooper spark plugs, Kingsbourne or Magnecore plug wires.
Read the write up section for the "how to" on how to do a tune up on your truck.

 

Thank You So Much Spike555, Your Always A Big Help,Really Appreciate it! The Auto Zone guy said it could be the "Ignition Coil" what do you think? About 2, Days ago I went to turn on My truck and it turned on But The a/c, and The Radio Didn't, I Turned it off. Then Turned it Back on and It Wouldn't Start. After About 5 Minutes I Tried it again and Everything came on Great. Hadn't Had a Problem and Everything seems to run Great.Any idea if it could be due to the codes that came up? Thanks So Much!!!

 

When doing repairs you start replacing the cheapest parts first and work your way up to the expensive bits, they would be in this order: spark plugs, plugs wires, coil packs.
Replace your spark plugs and plug wires and see how that goes before you even consider the expensive coil packs.
I used Champion 318 plugs at about $2 each and kingsborne 8mm wires at about $60. Kingsborne Wire Werks Inc - Spark plug wires, Automotive, RV, Motorcycle, Marine, Racing, Industry

 

Thank You So Much Will Do That! I Am Very Greatful For this Forums! All of you always Help Alot!!! Thank You!