There probably isn't an easy procedure to determine your root cause without taking some time to properly diagnose the concern. However, I would assume that since you say the fluid is not returning that it means that the vehicle probably has no steering assist. The proper diagnosis would entail a aperatus simply called a Power Steering analyser that is installed between the fluid pump and the pressure line to the steering gear. the analizer has a flow control valve, flow meter and a pressure guage that when used correctly will test the fluid pumps ability to provide pressure, and volume within set manufacture specs. If your pump is working correctly and is able to attain fluid from the reservior (no hose blockage) than the pump would probably pass its performance tests. Also, a concern could exist after the pump. for instance, there may be a fluid blockage within the steering gear, fluid lines, or fluid cooler after the fluid flows from the pump. If this condition is the problem the steering analizer will show abnormal high pressure anytime the engine is running. This may be noticeable audibly if with the engine running the power steering pump may have a constant growl or whine.
Is a screen built into the power steering reservoir.
how do i put a power steering pump on a 1987 dodge Dakota truck v6
the return lines are 99% of the time the ones with the smallest diameter.(also are not bolted down like the high pressure one)
No
How to separate steering yoke from rackpinion with out removing rackpinion from truck 1992 Dodge Dakota 2-wd sport
It's built into the power steering reservoir. To replace it you need to replace the whole reservoir. Fortunately, this is an inexpensive part... ($30).
In the power steering reservoir located on top of the power steering pump. No pump then it has manual steering.
Listed in the owner's manual.
Top middle of engine.
normally it stamped onto a logo, but one difference is the power steering pump. 2.7 the reservoir is mounted on the pump, 3.7 the reservoir is connected to the pump via return lines
ATF
Regular old power steering fluid.