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LOUD KNOCKING

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Old Nov 18, 2009 | 11:24 AM
  #1  
branden.w's Avatar
branden.w
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LOUD KNOCKING

on cylinder # 7 no clue, sometimes will go away in a slight rev or when the motor is nice and warm. any ideas? new injectors, glow plugs, fuel return, and others. co clue what it is.
 
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Old Nov 18, 2009 | 11:31 AM
  #2  
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axe_handle
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It could be a loose rocker arm. Otherwise it sounds like an injector.
 
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Old Nov 18, 2009 | 11:48 AM
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i was thinking injector as well. im gonna check it out today, it sounds too wild to ignore for now. thanks for the input. did you read my thread about my electrical issue?
 
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Old Nov 18, 2009 | 06:58 PM
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PLC7.3
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Please put some truck info in a signature.....

How old are the injectors........

Are you using any coolant....

How many miles on the truck.....
 
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Old Nov 18, 2009 | 07:59 PM
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i do run coolent and the injectors are new delphis. new plugs
 
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Old Nov 18, 2009 | 08:20 PM
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By USING......... I meant loosing any from the cooling system out the tailpipe, smells sweet and white smoke.
 
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Old Nov 18, 2009 | 10:23 PM
  #7  
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smells sweet as candy. i know i have a blown head gasket.
 
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Old Nov 19, 2009 | 03:39 PM
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Coolant going into the cylinder can hydrolock the engine.

With a blown head gasket, you already know what the problem is.
 
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