I hooked onto my trailer and left the truck parked outside last night (not normal). This morning it was 19F and windy when I fired the truck up at 4AM, let it warm up for about 5min while I went in and grabbed my coffee.
As I pull away I hear the power steering pump groan when I turn the wheel, it's done this before after a really cold start but it was exceptionally loud this morning and I could feel the vibration from it in the steering and brakes. Normally it'll go away by the end of the driveway but today I could hear and feel it till I got through town, about 3-4miles. I'm used to odd noises and vibrations in my old truck but this was pretty unnerving, I had visions of shearing the tabs off the shaft like Russ did a few years ago, fortunately it eventually freed up and simmered down.
Is this a sign that my pump is going T.U.? Maybe there's a valve or something sticking when it's cold? Something I can do for maintenance on the pump, maybe change the fluid?
I didn't check the fluid this morning but I check it occasionally and it doesn't appear to be leaking.