94 cummins studder - Diesel Bombers



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

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  #1  
Old 11-18-2012, 10:07 PM
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Default 94 cummins studder

i have a new to me 94 cummins 4x4 right around 1000-1300 its got a real stutter that completely disappears from 1300 on up and no idle issues. motor has 370 injectors and a #7 fuel plate. i also noticed the person who owned it prior added an inline fuel pump but have no clue the brand or if it is even for a diesel application could this be my problem. i unfortunately do not have a fuel pressure gauge. thanks for any help
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Old 11-29-2012, 10:06 PM
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any smoke with the studder? and like you said a pressure gauge would help a ton
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Old 11-30-2012, 10:36 AM
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all 160 pumps have a lil miss like to them at about 1200
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Old 11-30-2012, 11:52 AM
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Check your crank sensor
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Old 11-30-2012, 10:36 PM
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Quote:
Originally Posted by 1993firstgennewbie View Post
Check your crank sensor
How would that matter on a P-Pump motor, all the CPS does is give a tachometer reading ?
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Old 12-01-2012, 12:48 AM
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correct^^
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Old 12-01-2012, 12:50 AM
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I'd check fuel pressure. Should be about 17 at idle n 27 at WOT.
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  #8  
Old 12-02-2012, 02:25 PM
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has the timing been screwed with at all because i accidently bumped mine to like 20 degrees and she had a lil shutter around 1500 but brought it back 19.5 and went right away
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