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Old 09-13-2012, 09:59 PM
jorgofthejungl jorgofthejungl is offline
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Join Date: Sep 2012
Location: indiana
Age: 48
Posts: 4
Gender: Male
Vehicle: 2004 Dodge Ram 1500
Trim Level: SLT
Color: black
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
Rep Power: 0
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Default Poor mpg throwing code p0305

I just bought this truck it's a 04 4.7 SLT 4x4 with 98k miles. After hauling my camper 500 miles I am getting error code 0305 misfire cyl#5. My mpg went from 11 to 8.9. I'm thinking of changing all plugs and possibly fuel injectors. Only run me around 250 for all parts. Anyone have any ideas or suggestions? I'm hoping it's not the lifter issue I've read about but I have no way of telling. Any help is much appreciated. Oh yeah when towing my trailer the truck acted like it had no power to go over 55 on hwy. at one time rpm gauge shot up to 4700 and I had to take my foot off of pedal to get it to downshift. A few miles down the road I of the engine ses light flashing about 8 times and it's been on every since.
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Old 09-14-2012, 11:20 PM
goatman65's Avatar
goatman65 goatman65 is offline
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Join Date: Oct 2011
Location: Colorado
Posts: 41
Gender: Male
Vehicle: 2009 Ram 4X4
Trim Level: Laramie
Color: Flame Red
Engine: 2007-2011 409ci (6.7L) Cummins Turbo Diesel 350hp 650lb/ft
Rep Power: 0
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Default Simular issue

The error code is back.. 305..
after I did the head gaskets, I lost at least 2-3 MPG.. and the code started showing up..
today after I cleared the code, she died.. started right back up, but running a little rough. code hasn't shown up as of yet.. will be checking it out over the weekend

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