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4.6l Help!!!!!!!!!!!!!!!!

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Old Dec 11, 2005 | 05:12 AM
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4.6l Help!!!!!!!!!!!!!!!!

my 4.6 all of a sudden started knocking, so did compression check and drivers side average between 170>160 but passenger side all inthe 180's.
why the lost of compression and whats the knocking?
 
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Old Dec 11, 2005 | 06:08 AM
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Hello- Welcome to FTE! I have moved your post to the specialized forum we have here for your question. Check out the list of tech forums we have here. There is a wealth of information and expertise here to help you. There are a number of links in my sig below to help you also. Have fun!
 
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Old Dec 11, 2005 | 09:05 PM
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Welcome. What year is it and what are you working on??? That's not a whole lot of difference. Have you checked the oil pressure with a real gauge?
 
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Old Dec 12, 2005 | 04:07 AM
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it's a 97' f150 4.6L , the driver side has the lower compression but also has bad knock at which the only time you don't here it, is at idle
 
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Old Dec 13, 2005 | 05:13 PM
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Any Codes?
 
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Old Dec 13, 2005 | 05:27 PM
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knocks anywhere but idle....might want to be real soft on the gas pedal. you might have some new ventillation in the block soon
 
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Old Dec 13, 2005 | 09:45 PM
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Yep, you seem to have a rod trying to vacate the block.
 
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Old Dec 13, 2005 | 10:18 PM
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yep, interior redesigning about to happen
 
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