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Message: <blockquote data-quote="Andersg" data-source="post: 21647" data-attributes="member: 8018">Need help.  Was given a 2014 2.4L Equinox with a bad piston and rod bearing.  Rebuilt engine with new pistons, rings, rods and crank with all new bearings.  Valves and Cams were in excellent condition so did not replace.  Engine assembled and installed.  Starts right up and runs but, getting P0016 after it warms up.  I have torn down the timing chain and cover and reset the chain and marked links according to specs, #1 cylinder TDC on exhaust at end of exhaust stroke, exh cam mark at 10, (notch on cam is at 7) intake cam mark at 2 (Notch on cam is at 11) with 14 links between the colored links, no slack from the intake to the crank gear with keyway at noon and timing mark at 4.5/5 on the dial.  Colored link hits perfectly.  Replaced the tensioner and made sure all chain slack was on the exh side of the crank timing gear so tensioner could take up all slack.  Have done this 3x after getting codes and when i disassemble valve cover, chain has some slack although fully tensioned when assembled.  Not much but enough play to cause concern considering how tight it is when timing is set (you need to maneuver the exhaust cam to get the notch to line up and variable timing gear to align perfectly, tension snaps chain back in place and taught.  Tensioner and all other guides were replaced at time of rebuild.  Replaced both cam and the crank sensor to be sure those were not an issue.  Changed out the variable timing solenoids (exh and Intake) as well.Definitely runs rough and in low power mode after warmed up so this does not appear to be a false code due to wiring or a short plus the slack does appear in the chain when removing valve cover.  Where am i going wrong?  I am really about $1500 into this so still inexpensive car but, would like to avoid 1K+ for a pro to redo the timing chain.  I know the mechanical stuff pretty well, the electronics not so well. Need some experienced input here.  Can't figure this one out even after reviewing other threads.  Thank you in advance!</blockquote>

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