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1994.5 - 1997 7.3L Power Stroke Diesel  

rough idle

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Old Nov 8, 2007 | 08:57 PM
  #1  
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Jake331
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rough idle

once again this is on a 95 powerstroke... alot of times when I am coming up to a stop sign, when I push in the clutch and let off the gas it will chatter real hard like its about to die then will smooth out to a regular idle... it will also do this sometimes when I crank it up... my old 91 7.3 did this also.... any ideas?
 
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Old Nov 8, 2007 | 09:06 PM
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Neal 97 250
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You could always try the CPS. Fuel filter? Air filter? That is where I would start.
 
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Old Nov 8, 2007 | 09:21 PM
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CPS? crank position sensor?
 
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Old Nov 8, 2007 | 10:04 PM
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Good guess. Cam Position Sensor.
 
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Old Nov 8, 2007 | 10:06 PM
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Is your clutch adjusted properly? Maybe it isn't fully disengaging when you press the pedal before coming to a stop. Mine truck is an auto, so I'm shooting in the dark on this one.
 
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Old Nov 8, 2007 | 10:15 PM
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its not a clutch problem because it will still do if if I throw it in nuetral
 
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Old Nov 8, 2007 | 10:18 PM
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Dual mass flywheels will chatter like you described when they are going bad. I noticed mine had a very hard pedal as well
 
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Old Nov 9, 2007 | 10:06 AM
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Neal 97 250
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True on the flywheel. Mine went bad and darn near bounced the truck off the road. But it never made it die, but it is possible. They shake very hard when the bearings go out on them.
 
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