Issue been going on for awhile comes up as Po6dd code. Seems intermittent, DTC was on, made appointment at dealer- get there the light goes off, no code. On the way home 2 miles later DTC back on. Getting lousy gas mileage which I believe is a result of the valve/ solenoid being stuck off which causes the oil pump to go into high volume/ pressure mode. I'm about ready to get out of this truck into something slightly newer, like around 2018 with an 8 speed- what a rocket that must be with the 3.42 gears even if it's only with the L83. I read somewhere and wanted to ask and verify- were the oil pump solenoids/ valves upgraded/ updated like around 2017? Or is it still luck of the draw? Could having DOD tuned out have an impact on said solenoid becoming stuck?
TIA

 

You didn't give any info on what truck you have now?
guessing it's a 2014+ 5.3?

 

Yeah- a 2016 Sierra w/L83.................