Unsure but PS fluid seems to be leaking from it Is there a PS cooler at the front?

You need to specify your make, model of car. Some cars have Power Steering coolers in front of the radiator and some don't. Most powers teering leaks come from the power steering pump seal going bad which can be temporarily fixed by using an additive like Lucas Power Steering Stop Leak. It's a little pricey but can get you by and has stopped leaks in my power steering units. If the leak or seal is real bad then you will need to replace the pump, and it may or may not have the reservoir attached to it. Most cars do not have the power steering cooler but some of todays high performance cars do and if something has punctured the cooler, or the lines leading to it, then you may need to replace the cooler or hose. Identify your car and try to determine where the exact leak is and then repost for better help.