I had my truck parked for 7 days under the covered shelter. Havent started or drove it in a week. Been Raining for a week and off work.

 

Saw a little wet spot stain on the concrete inside the driver front wheel.

 

Turns out the power steering pump leaked a little out the cap like it was over filled but it hasnt been.  Started the truck and backed straight back and then noticed no power steering and no power brakes. Stopped got out , checked the reservoir and had oil in it and as the truck idled for a few minutes I could see the oil inside the pump start flowing and pump working. Got back in the truck and the power steering and brakes were working fine now.

 

Drove and fueled up the truck and ran a errand came home and everything is fine , no leaks

 

Kind of like there was a vapor lock or Burp bubble in the fluid system or what ever in the power steering/brake fluid system that pushed some fluid out the power steering pump cap and also caused a vapor or air lock ???...I wonder if it was the weather/atmosphere pressure or  two days of continues rain and truck sitting for a week

 

Weird...

Typically the burp problem shows up if you been turning the steering wheel without the engine running will possibly burp fluid out. Since the pump is a restriction to the intake of the gear box so it doesn't refill the box as fast as the return to the pump. Hence it burps out the cover.