What to know about the Pitman Arm Shaft Seal:
In order to transmit direction from the steering wheel to the vehicle’s wheels and tires, a complex network of interconnected components is used. The steering wheel connects to two different steering shafts, which link to the gearbox. The pitman arm joins to the other side of the gearbox, and is liable for helping to move the wheel in the desired direction.
The pitman arm shaft seal basically serves the same purpose as the steering shaft seal – it stops power steering fluid from exiting the gearbox. It is protected by a dust cover, which helps to ensure that dirt and dust don’t compromise the interior seal. Both are held in place by snap rings.
Substituting a pitman arm shaft seal is a little simpler than changing a steering shaft input seal, and it can be done without removing the gearbox. With that being said, the pitman arm does need to be disconnected and moved out of the way, and there is a significant amount of teardown needed. Have one of your expert mechanics change the pitman arm shaft seal if necessary.
Facts to Note:
The pitman arm shaft seal should be examined during normal suspension repairs and wheel alignments.
The seal can be checked if a problem is observed – a visual inspection from under the vehicle is possible if car is placed on a lift.
Like all other seals on your vehicle, pitman arm shaft seals will eventually need to be replaced due to wear and tear.
SEE ALSO:HOW TO REPLACE A DRAG LINK
How to Fix:
The vehicle’s front wheels are put straight and the vehicle is lifted and held on jack stands
The defective steering pitman arm shaft seal is detached
The new steering pitman arm shaft seal is fixed
The vehicle is removed from jack stands
The vehicle is started and checked for steering operation
Without a reliable pitman arm shaft seal, dirt and dust can enter the gearbox, and power steering fluid can leak out. Power steering fluid is both corrosive and flammable, and low fluid levels can spoil your steering system. If you suspect you have a leaking seal, we recommend having it analyzed by one of your expert mechanics.
Common symptoms indicating you may need to change the Pitman Arm Shaft Seal:
Low power steering fluid in the reservoir (indicative of a leak at some point in the system)
Power steering fluid on the ground behind one of the front tires
Importance of this service:
Having your pitman arm shaft seal changed is vital for maintaining the health and functionality of your system overall. If you have observed low fluid, or fluid leaks on the ground below the pitman arm, we recommend having one of your expert mechanics diagnose the issue and then repair the system.