Inspected the K&N filter elements in my air cleaner assembly. They looked okay and I didn't see any foreign material in the housing or air filter chambers. Button everything back up and was just about to close the hood when I noticed that the PS wiper arm cap was missing. Looked around and found it lying loose on the windshield shroud. Apparently it came off in the cold. Cut a piece of smooth electrical tape and placed it around the bottom section of the cap. Made sure it was secure. Then inserted the wiper arm cap back on the mounting screw - electrical tape made it a little difficult to insert but it did go. Cap should stay in place now. Thanks FP for telling me about that little trick some years back.