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Detailed engine,now intermittent misfire.

Discussion in 'Under the Hood' started by CJL, June 28, 2011.

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    1. CJL

      CJL Active Member

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      I Detailed(low pressure water) my 5.0 engine,now I have a intermittent misfire(shake).

      I removed connectors looking for water but found none.

      Whats the most sensitive component under the hood? Coil packs?
       
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    3. Turdle

      Turdle Has Pleasure Chamber Staff Member Moderator Elite Explorer

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      Probably arcing at the spark plug wire boots. You could run the engine and have someone lower the hood over you a bit to make the engine compartment dark so you can see where it is arcing. You might have just found a bad spark plug wire, even if they are relatively new.
       
    4. CJL

      CJL Active Member

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      Thanks for the input.

      I put dielectric(tuneup) grease on all main sensors and the ecu under the hood,drove a round the block and everything seems to be good,misfire gone.

      I have no CEL but I threw the scanner on it for giggles and found codes P0113 and P0102.

      Any input?
       

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