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2004 Ram 5.7 idles rough

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  #1  
Old 11-14-2016 | 09:02 PM
perryc's Avatar
perryc
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Default 2004 Ram 5.7 idles rough

I have a 2004 Ram 2500 5.7 hemi, it idles real rough. Issue has been happening in and out for a few months, now has been happening constantly for a week. Only occurs when truck is in Park. As soon as I shift into reverse or drive it goes away.

I have codes P0300, P0456 and P0152 coming up.

I have changed spark plugs and right side upstream O2 sensor and the problem is still there.

Thinking it could be fuel injectors or EGR valve?

Please help
 
  #2  
Old 11-14-2016 | 10:49 PM
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p38251
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From: Vanderpool Texas
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P0300 random misfire's 0456? Evap system? 0152 bank 2 sensor 1 02 heater circuit. If you can swing it replace all 4 02 sensors. The others will fail soon. Ego valve issue will give you a code. Clean the throttle body and put some sea foam in the tank.
 




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