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2005 chevy 6.6L turbo deisel losing power and blowing black smoke

I have a 2005 chevy 6.6L turbo deisel.Sometimes it loses power and blows deep black smoke upon acceleration and will change to grey. Sometimes when at a light it will blow blueish to black smoke. I changed the EGR valve with no change.There is no smell of coolent in the exhaust.

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Pump may need recalibrating or a kit through it
or you may have a cracked turbo

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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