ENGINE IS IDLING ROUGH AND ENGINE LIGHT CAME ON

  • Tiny
  • swhitecat
  • 2004 Ford Ranger
  • 93,000 miles

I changed the spark plugs due to hard starting. Upon completion, the rough idling began, and the engine light came on. The plug gap on the old plugs was substantially off.

The change of plugs seems to correct the hard starting, but now I have the problem of the rough and irregular idling, along with the engine light being on.

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Saturday, October 26th, 2013 AT 5:29 PM

3 Replies

  • Tiny
  • madmike1735
  • Expert
  • 963 posts

You will need to get it scanned and let us know the codes. If its misfiring, it should set a code indicating which cylinders are misfiring, and should be easy to fix. Also, what size engine in this?

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Saturday, October 26th, 2013 AT 5:38 PM
  • Tiny
  • swhitecat
  • Member

The Ford ranger has a 3.0 Liter engine

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Saturday, October 26th, 2013 AT 5:44 PM
  • Tiny
  • madmike1735
  • Expert
  • 963 posts

Ok. You will still need to get it scanned though, and let us know what the codes are.

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Saturday, October 26th, 2013 AT 5:58 PM

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