At higher mileages (125,000 -150,000) the power steering pump may begin to leak on the 6 cylinder vehicles and could require replacement.
Car Problem Reports
Toyota Pickup Power Steering Pump May Leak on Higher Mileage Vehicles
Toyota Pickup Problem
Average Mileage: 240,000 mi (155,000 mi - 375,000 mi)
power steering fluid leaking and need to add fluid every couple days, pressure washed and cleaned best as possible but still cannot pin point the leak. Not much room to see in that area. Will post back when I find the exact cause
Visitor, 1991 Toyota Pickup
Power steering leaked a lot, two bottles of Lucas power steering stop leak then going back to regular power steering fluid fixed it.
Visitor, 1994 Toyota Pickup, 155,000 mi
FLUID LEAK, HAVE NOT FIXED PROBLEM, JUST KEEP ADDING FLUID
Visitor, 1992 Toyota Pickup
had to replace the pump