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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

98 12 valve low rough idle

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  #11  
Old 09-22-2014, 06:34 PM
4x4manonbroke's Avatar
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Yeah .. I would go ahead and put a mechanical gauge .. just cause I'm retentive like that !!!
 
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  #12  
Old 09-24-2014, 08:28 AM
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Ok so checked my fuel pressure.. at idle it jumped from 12-21psi. Idk why it jumps.. at 2500rpm it was at 26 psi
 
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  #13  
Old 09-24-2014, 10:21 AM
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Still too low .. mine is 28-30 @ Idle ...
 
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