EGR system cleanout

Thanks for the helpful hints there. I wasn't sure how to release the tensioner once I got it in place. I have plugs out but already but was only planning on two complete (gentle) revolutions of the crankshaft. Makes better sense to continue until the timing marks are verified. Will also be doing a leak down test (to verify head gasket condition) and compression. I did see evidence of at least one overheat episode so hoping for the best there.

 

The input damper plate (damaged by previous misfire) has been replaced, EGR system and manifold THOROUGHLY cleaned on this 2013. 12v battery was down to 11v so I recharged that. At first, it wouldn't start and I also couldn't clear the old codes. While I had replaced the safety plug, I hadn't fully engaged it so the Hybrid System message was also present. After I pushed the safety plug latch completely in, all worked well and it runs like a top! Test drive will be tomorrow. THREE CANS of carb cleaner to get the EGR Cooler clean at 170K miles. Prior to this, this car also had a broken head gasket/bent piston rod. At that point (around 100K miles) I didn't know enough about these to clean the EGR system.

 

I was concerned that the vanes or fins in there might be damaged by high pressure. But, I'm sure a number of solvents and detergents would work. I got the carb cleaner at walmart so it was only 9 bucks total for the three cans.