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lifter problem?

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Old Feb 14, 2011 | 09:22 AM
  #1  
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phantom 309
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From: Nap town
lifter problem?

i have a 93 f-250 with a 7.3 idi n at an idle it has a loud knocking noise and its missing but goes a away when idled up is this a lifter problem?
 
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Old Feb 14, 2011 | 04:57 PM
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Dave Sponaugle
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From: Nutter Fort, WV
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Are any of the injectors much hotter than the others?

An injector stuck open can let compression back into the injector and make a rather loud noise.

That injector would also be much hotter than one closing normally.
 
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Old Feb 16, 2011 | 09:37 AM
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From: Nap town
i havnt checked that but i just put all new injectors in it
 
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Old Feb 16, 2011 | 06:46 PM
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Did this noise start right about that time?
 
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Old Feb 18, 2011 | 09:12 AM
  #5  
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From: Nap town
it kind of did it before but i think im suckin air somewhere because it stalls after the first start n i have to pump the pedal to get it to fire up
 
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