6.4 hemi

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Jdcone104

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Ram 2500 6.4 pO300 on cold start up deal is blaming fuel but it only does it when cold out side also a little rough at idle.
 

U&A

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Ram 2500 6.4 pO300 on cold start up deal is blaming fuel but it only does it when cold out side also a little rough at idle.

Elaborate on “p0300”. Please


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Jdcone104

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This is the second time it’s come on and the truck only has 4000 miles on it.
 

69GWC

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Maybe it has some water innthe fuel ?
Maybe a bottle of heet in it just to be sure.
 
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U&A

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Maybe it has some water innthe fuel ?
Maybe a bottle of heet in it just to be sure.

You had this problem didn’t you? I remember this.


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69GWC

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You had this problem didn’t you? I remember this.


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I did, mine was missing out and running real rough and threw a dozen codes.
2 bottles of heet and ran the tank out and after the next fill all was good.
 
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Jdcone104

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Dealer tested fuel and told me it had and small amount of water in it and over ten percent ethanol but I’ve gotten gas there at the same place for years and my wife to with no problems. It seems to throw the code below a certain temp out it happens in open loop before warm up and been running mid grade fuel.
 

McBroom

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Denison Tx
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Hemi 6.4L
Check out my thread
6.4 has a misfire.
Turned out to be the mds modules.


I Love my 18 Ram 2500HD 4x4 CC
Blue Streak Pearl off-road
 

Burla

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2010 Hemi Reg Cab 4x4
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Dealer tested fuel and told me it had and small amount of water in it and over ten percent ethanol but I’ve gotten gas there at the same place for years and my wife to with no problems. It seems to throw the code below a certain temp out it happens in open loop before warm up and been running mid grade fuel.

same place meaning something not top tier?
 
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