I recently bought a 2008 Dodge ram 1500 with a 5.7 v8 hemi in it, the dealer said that they just changed the steering pump, but the steering wheel was still hard to turn, the auto parts store told me if the steering wheel is still too hard to turn it's the steering pump cooler that ruining the pump.
After removing the pump, It looks fine and new, and after an inspection of the cooler It's not leaking or clogged, I can blow through it.
But as I was looking through the owner's manual it says to use Mopar atf +4 transmission fluid, but what I drained out was a dark brown fluid, could the fluid viscosity between regular power steering fluid and transmission fluid be the root of the problem ?
How would I completely remove the wrong fluid from the system entirely, so it has the right fluid.