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I have an 08 that accelerates uneven at the start then even's out afte the RPM's go up. Kind of like sputtering at the begining of acceleratiing. There are no codes showing so I'm not sure what's causing it. Anyone have this problem before???? What else would I check for.
 

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OD is 3403. How do you check the fuel pressure ??? I'll blow it out as well.

What would be the idle RPM for it.
Your fuel pressure should be 39lbs. There's a valve on the fuel rail that you can hook a fuel pressure gauge to. If the engine is running fine all the way to max RPM and speed then it may be time to change your belt. Mine started to get jerky off idle, changed the belt to an EPI severe duty and it fixed the problem:ride:
 
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