Mechanics

ENGINE IS IDLING ROUGH AND ENGINE LIGHT CAME ON

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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Swhitecat
October 26, 2013.



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?

Madmike1735
Oct 26, 2013.
The Ford ranger has a 3.0 Liter engine

Tiny
Swhitecat
Oct 26, 2013.
Ok. You will still need to get it scanned though, and let us know what the codes are.

Madmike1735
Oct 26, 2013.