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Old Aug 22, 2007 | 10:13 PM
  #1  
smanninen's Avatar
smanninen
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From: Union,IL
white smoke

I have a 1988 f250 4x4 with the 7.3 non turbo at start up there is alot of white smoke and when i am driveing and hit around 2500 rpms you can see white puffs of smoke comeing out of my stacks and the truck seemes to run a little harder but when you let of the gas there is no more white smoke and the truck runs great what do yall think is causeing this
 
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Old Aug 23, 2007 | 05:36 PM
  #2  
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dieself250
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white smoke at startup can be bad glow plugs, but at 2500 rpms i would suspect weak injectors
 
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Old Aug 23, 2007 | 05:56 PM
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KJLYPW
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Timing may on the retarded side, where is your scribe line on the 12 oclock position of the injector pump mounting flange in relation to the one on the timing gear cover? They should be almost dead on lined up, if not slightly rotated to the passanger side by about 1/2 a line. Good place to start anyway!
 
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Old Aug 25, 2007 | 09:03 AM
  #4  
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Dave Sponaugle
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From: Nutter Fort, WV
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Puffs of white smoke while driving sounds like injector problems to me.
 
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