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knocking and pinging

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  #1  
Old 05-22-2007 | 06:01 PM
beercan_willy's Avatar
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knocking and pinging
there is no code or check engine light on but i,m getting a lot of pinging when i give it a little or alot of gas . i,ve cleaned the map and changed the plugs and pcv but not the hose but its still there any ideas
 
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  #2  
Old 05-22-2007 | 06:48 PM
F151's Avatar
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Did you get some bad gas? Try some STP or other fuel enhancement/drier in the tank and see what happens..........
 
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Old 05-23-2007 | 07:02 AM
torkum's Avatar
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From: Lebanon,TN
Don't know what engine you have, but sounds like the COPs or coil pak/paks could be getting weak.
 
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Old 05-23-2007 | 10:31 AM
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what year is the truck? I am expieriencing the same thing when i get on mine real hard... i have a 2004
 
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