2011 Dodge Ram p0300 ramdon miss fire

2011 DODGE RAM
66,000 MILES • 4.7L • V8 • 2WD • AUTOMATIC
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WMW111
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I have been having problems with miss fires. The happen randomly with no consistency with no other codes. I have replaced the spark plugs and my camshaft position sensor and have cleaned the injectors. after I replaced the spark plugs the miss fires stopped for about 200 miles then stated back up again.
Mar 30, 2015 at 10:34 AM
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JACOBANDNICKOLAS
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Has the check engine light come on?
Mar 30, 2015 at 7:39 PM
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JACOBANDNICKOLAS
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Sorry, I just realized that was in the title of your post. Have you checked for vacuum leaks? Have you checked fuel pump pressure? Are there any other codes that come up?
Mar 30, 2015 at 7:39 PM
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WMW111
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no other codes but I'm unable to check for pressure. I also did not see any leaks.
Mar 31, 2015 at 8:52 AM
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JACOBANDNICKOLAS
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How did you check for vacuum leaks? Also, you really should check fuel pressure.
Mar 31, 2015 at 9:27 AM
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WMW111
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I just fixed it. I found out that it was the o2 sensors were going bad.
Apr 1, 2015 at 10:53 AM
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JACOBANDNICKOLAS
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Glad you found it.
Apr 1, 2015 at 9:18 PM