Delete cabin air filter, add 2 rear struts.2014 Forester 2.5, 138K.
Replaced the crossover (water) pipe o-rings, PCV connector, coolant and vent hoses attached to the PCV connector, PCV Valve and Hose, Intake Manifold Gaskets and Both Thermostats (CVT and Engine).
Also performed a Throttle Body Cleaning, Engine Oil and Filter Change, Tire Rotation and replaced engine and cabin air filters.
Water Pipe o-rings were rock hard and had to be dug out in pieces by braille. Surprisingly, the rubber intake manifold gaskets were also rock hard. PCV valve was stuck and had oil inside.
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CVTF thermostat gasket looked like it was ready to leak any day. Lots of corrosion on the outlet as well…not sure why.