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If is still using pushrods maybe GM went with some kind of rocker disable feature for the AFM on the new design it might be a lot more reliable then the current cam lifter design. A rocker design could be similar to the over head cam roller follower CD setup.

It's not internal and it hangs off the driver side of the transmission. It's a plate heat exchanger which functions both as a heater and cooler with coolant lines running to it. Plate heat exchangers are actually one of the most efficient ways to cool something.

Yes, each powertrain combination would be different shift parameters. hybrid 3.5L, 3.5L, 2.7L, 5.0L. Max tow might be different too. Probably need to know what engine, final gear ratio, 4x4, and if its a hybrid to get an accurate idea.

If it's a high accuracy transducer (sensor) it's possible to read like that. If you ever watched mechanical oil pressure gauge for hydraulic system, that's why they are typically oil filled.

Mine has coasting whine at 40 to 50 and 60 to 75mph. Seems like pulling teeth to get them to actual acknowledge the issue. Part of it comes from the manufacture's crappy warranty pay, doesn't really entice quality work digging into problems. I am mechanically inclined. Mine I am pretty sure is...

Hm, my 22 5.0l is a little rough until it warms up. Then every now and then I get a stumble at idle when I have been driving over 40mph then come to a stop the stumble comes about 15 to 30 secs later.

My truck has the 6-5 clunk when good and hot from city driving also a intermittent thump when taking off from a stop same temperature conditions and Skip down shifts too are hard. Slightly warm cold downshift hard too.

I interested in the transmission and CD part of it more then anything else.

Mine seems to want use oil when running 87. Plus it pulls hills better with 93.

Was it making this noise before the alternator replacement?

That sounds like a bearing in the pulley system mabe fans if they are running. to me its coming more from the grill area. My truck doesn't make that noise

In the industrial sector plate liquid to liquid heat exchanges are one of the best solutions for temperature control, very efficient. Remember when changing thermostat temperature you are not changing cooling capacity unless it offers less restriction of coolant flow. When the thermostat is...

Just so you know the 10r80 transmission operating temperature is 206 to 215 degrees. The hydraulics and fluid are designed for this as the optimal temperature. Running cooler than those temperatures would likely create problems. If you don't already have the heavy duty towing package, I would...

The Transmission pumps on the 10r80 are especially noted for having whine noise due to strait tooth pump gears. Interestingly enough my truck hardly makes any noise, but the rental f150 I had did. I can't really tell if it's that with yours the video seems to have a good bit of background...

Sounds like the infamous CDF drum bushing has moved causing improper clutch supply. Trans needs to be disassembled.

FYI not your exact situation but similar. https://www.f150ecoboost.net/threads/engine-died-replaced-timing-chain-now-it-wont-start-documented-experience.76196/

A broken crank usally locks the engine up that i have seen. And would usally happen under power.

I don't know what else to tell but if a engine spins over too easy and has no compression you have mutiple combustion chambers open to atmosphere. No spark plugs, few valves are sealing, Or rings are gone. Rings don't go away suddenly. If main chain jumped time and no compression there is bent...

If it's an older generation 3.5l with the single chain and you jumped time and no compression on any cylinder. Then you more than likely bent valves on multiple cylinders causing excessive leak down.

From what I saw on the 2.7l it is to do with the valves bring improperly hardened cause valve material to fall into the cylinder.