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2002 Dadge Ram 2500 5.9 starts fine then rough idle

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Old 03-07-2018, 02:24 PM
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Default 2002 Dadge Ram 2500 5.9 starts fine then rough idle

starts fine, then in about three minutes rough idle back fire if you floor it best bet is neutral rev engine for about a minute and it goes away. fine as long as you don't shut down. if you shut down it does it all over again..
 
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Old 03-07-2018, 02:39 PM
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Mileage? Maintenance history?
 
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Old 03-07-2018, 04:23 PM
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Failing O2 sensor.
 


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