Bought truck with low pwr steer fluid. Replaced same with NAPA pump. Filled 'er up w/ tranny fluid as it says. Kept filling it, day after day after...you get the idea. Musta put 10 - 12 quarts. Couldn't for the life of me find out where it was going. There was a tiny leak up at the top of the engine back on the passenger side fire wall. Not enough to matter-a little smoke off the manifold. Kept looking at the brakes, as they're pwr asst'd by the pwr steering pump. Didn't find anything. While all this was going on, I noticed the crankcase oil was up. Way up. Like 1/2 way up the dipstick. Looked old so I changed the oil-nothing in it I could see, and didn't get a chance to measure it. Then it began to smoke, intermittently. Smoked when started and for a while after. Cleared up when warm, then smoked some more. Took it to NAPA who was thinking pvc valve. We got to looking around and he saw the 2 hoses leading up from the pump to the rear engine. He pulled one off and there was the fluid. It had been getting sucked into the manifold. Some burned and some ran into the crankcase. I took the "EVO" valve off, plugged the 2 vacume lines and got a brass screw-in plug from the NAPA guy and it has all cleared up. (The EVO valve cost's $100). But, I wonder, what all happened to the engine for the 4 - 5 wks I drove it? NAPA said crankcase pressure was low, used the word "non-existent"