My power steering racks boots are full of fluid. Can I just replace the boot?
Sorry. No. It won’t work. The fluid leaked into the boot because the shaft seal or lower pinion seal failed. The boot is only designed to keep dust, dirt and water out of the rack. The pressure in the steering system can reach up to 110 bar ( one bar equals about 14.5 psi) or 1595 psi. Since the atmosphere around you and the rack is only about 14.7 psi and the pressure coming out of the rack is so much greater, replacing the boot will not solve the problem. It’s only a matter of time before the fluid fills up the boot all the way and leaks out of the boot. The solution is to replace the rack and you might as well put on a fresh set of boots while you are at it.
