Be shure to only rotate the pulley in the same direction as normal engine rotation. Turning it backwards has the potential to cause the timing chain to jump teeth.
It's normal for the pump to run for a couple of seconds when you push the brake pedal and the key fob is in the car. It's to make sure there is fuel pressure when you start the car.
I received a recall letter today from Ford. Apparently, the seatbelt pretensioner cables may exhibit corrosion in certain 2015-2017 Mustangs. No parts are available at this time, expected to be available in the second quarter of 2026.
The Ford shop manual calls for supporting the engine and lowering the entire engine cradle about 4 inches to get enough clearance to remove the pan. If the shop can get enough room to raise the engine instead, it might be a little less work, but still a fair amount of labor.
The power steering control module is integrated into the steering rack and is not a separate part. The codes look like communication codes. Check all the electrical plugs on the steering for any signs of corrosion. A replacement rack would have to be programmed, usually a dealer function...
Those hose connections can be a pain! For easy reassembly, remove the white plastic clips from the heater core and install them into the lines. That way it just takes a push to reinstall the lines, super easy.
aftermarket cores probably won't come with anything aside from the bare core. The Ford OEM parts do come with the foam and TVX. The temp sensor is retained to use on the new core.
If you do a search for Technical Service Bulletin 18-2256, it contains a lot of good information on the core...
When I changed the evaporator core on my 2016 a few years ago, I used the Ford OEM evaporator. It came with a new TVX valve and all of the foam that's attached to the evaporator. Aftermarket evaporators might not have these items...
The seatbelt explosive charge is designed to tighten the seatbelt to keep the occupant securely in place on the seat. That's why it's called a "pretensioner". The last thing you want in a crash is for a seatbelt to have any slack in it.