I recently had the heads off for dtc p0410 had to clean the exaust ports of carbon (bad design),so you know I did mess with the chain and removed the tensioner. It ran good for a couple of weeks. Now today it is as quiet as a church mouse again. Could I have gotten some debris in the left head where the oil flows to the lifters? Could it intermitently block a lifter from oil??? It is only the left side for sure and it sounds like only 1 tappet.
No Doc sorry now I did not ck for leaks around the oil tubes could be a bad O ring maybe. tubes did look good no cracks and ends were all on good I poked at them with a dental tool. I cant do any troubleshooting today the car is back to quiet
