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  #1  
Old 04-05-2011, 08:24 PM
mfever mfever is offline
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Default 2003 1500 ram 4.7 po306 code need help

Hello hows it going this is my sons truck it was running very rough so i borrowed a friends code reader and had po300 po303 po306 codes I changed plugs and now it runs better then it did but still not right still have a po306 code.I swapped plugs with number 4 still code swapped coils still po306 plug looks wet and darker then the new plugs when i took out the old plugs it was black and wet only one.I hear people say catalatic converter plugged then why number 6 also egr valve then why number 6 any help would be great I have not done a compression test yet to see if it is a valve or not.thanks
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Old 04-05-2011, 08:41 PM
erm
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That code comes up as a Cylinder #6 misfire. If it's carboned up, it could either be a valve guide is failing or one of the rings has failed.

A compression test will tell you if you have bad rings on that cylinder.
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Old 04-05-2011, 09:13 PM
mfever mfever is offline
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ya need to do that but with only 125000 km on i find it funny but weirder things have happened
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Old 04-05-2011, 09:14 PM
erm
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True but defecation does occur too...Good Luck!
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Old 04-06-2011, 03:18 PM
mfever mfever is offline
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Hello i guess i posted in the wrong place next time i will get it right.But anyway did a compression test today
1=145 2=145
3=150 4=125
5=150 6=115
7=150 8=145
That was at running temp cranking equal times per hole ....myself i am thinking head gasket between 4 and 6 the engine lost a water pump last summer on the highway going to the lake dont know how hot the engine got in the red anyway and for how long i dont know my kid was driving.I guess it could be a crack aswell between the two.Any other opinions would be helpfull thanks
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