Originally Posted by Murf | view 200925

When it comes to hydraulics the only real cause of heat is work, the more work, the more heat it creates. If you have not already done so, I would suggest you take a careful look at the power steering box. It is the only other piece left in the circuit. That�s a leaking internal seal will not be evident because the fluid is merely circulating back to the return line. However, the friction as it leaks past the seal will work very much like a partly open relief valve and cause excess work and therefore excess heat.It�s a simple easy thing to test. Best of luck.