Sometimes referred to as Rack and Pinion steering racks, due to the steering unit consisting of a main rack shaft with a small pinion. The pinion shaft is attached to the vehicles steering wheel via linkages. The pinion inside the steering rack has small teeth that mesh into teeth on the main rack shaft. This converts the steering wheel rotation into lateral movement that then moves the road wheels to steer the vehicle as you drive.
The two reasons why steering racks fail are fluid contamination and steering pump wear. Your steering rack plays a very important role in your vehicle and is an essential part of allowing you to control it safely. With pressures ranging from 200 to 1200 PSI, it is necessary to know when your steering rack is no longer functioning properly. All it takes is a small leak or contaminated fluid and your rack or steering pump will start to deteriorate leading to reduced steering ability and a possible failure leading to no steering at all. Lack of proper control can prove to be dangerous, especially at higher speeds.
Fluid contamination is the biggest culprit of steering rack failure. We recommend that the installer look at the oil in the old rack they are replacing no matter the reason for replacing the rack. If there is any contamination in the oil, they must replace the pump and hoses as well. If these parts are not replaced, the rack is very likely to fail again. With a few precautions taken, you can ensure a proper steering rack install and avoid potentially dangerous situations. Here is an explanation of the process to ensure you properly install your new steering rack.
As mentioned above, there are other variables to consider. Things to consider when installing a new steering rack Was there any residue in the fluids when the first steering rack failed?
If this is the case, you will need to replace the power steering pump and hoses or risk another failure.
The power steering pump should be inspected for wear. Like the power steering, the steering pump operates at a high pressure of 400-900 PSI. If the steering rack fails or has failed, the steering pump will continue to run with little or no oil. The rotor hub now wears out faster than usual.
There is residue from a failed seal on the frame that will contaminate the fluids and cause more wear. If you only change the steering rack, the steering pump will still be worn out and will eventually do more damage to your new steering rack. Even if the system is 100% flushed, metal particles will still accumulate if the rotor starts to rub against the sides of the pump casing due to a worn bushing. can fail. You can ensure your next power steering will last by checking for contamination, cleaning your system, and replacing your pump and hoses when they're worn. Stop wasting time and money on another shelf by getting it right the first time.