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07 gmc Sierra 6.0. Having an issue shifting hard into second gear, hooked it up to scan tool and came up code p0011 cam position actuator A. Bank 1 (timing over-advance) Anyone else had this issue or does anyone know if this could be my issue?
 

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Id put money on a bad cam sensor. Does the needle on your tach ever drop down? A bad crank sensor will make your tach act erratic, if not I'd say bad cam sensor
 

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So, what was the fix? I'm having the same issues with my 2007 GMC Sierra 6.0. Already changed the cam position sensor, the magnet, and the vvt valve/bolt that threads into the cam. And still the code P0011 comes up every 3-4 miles of driving. Oil is fresh and full. Oil pressure is between 30-40 psi at highway speeds, and sometimes falls a little below 15 psi at idle. Please help!!!
 
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