I am baffled by this problem I’m having with my '97 jeep wrangler. It’s had a bad power steering leak the past few months, and about two weeks ago the leak got so bad it started smoking. Smoking so bad to the point when I stop at a light, the cabin fills with thick thick smoke. I looked for leaks, and found none in the line. Then I checked, with the car running. The leak is actually coming from under the cap of the power steering fluid reservoir. When running, bubbles of fluid burst from under the cap. Is this air coming from somewhere? A clogged line?