Now my truck is reading code P0303 what is this exactly?

  • 2003 DODGE TRUCK
  • 100,000 MILES

Is this something ill be able to fix my self or dose it have to go to the shop? Yesterday I came here and asked about maybe putting a solution in my radiator cause its blew and is flowing like a river. My toyota isnt working so I had to drive it to the store now the check engine light is on and its flashing. The truck sounds HORRIBLE! It sounds like its drowning. And now its reading a code P0303. I know its cylinder 3 misfiring, but why is misfiring all of the sudden? Is this a major problem? Is it something that a home mechanic could possibly do or will it have to go to some expensive mechanic shop? PLEASE HELP PLEASE!

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have the same problem?
Monday, October 31st, 2011 AT 11:29 PM

1 Reply

  • 68,312 POSTS

Start with checking plugs, wire. Chances are that is where the problem is. If you never tuned it up, it is time.

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Tuesday, November 1st, 2011 AT 3:28 AM

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