What goes wrong
The power steering rack on these Legacy models often develops leaks from the seals, particularly at the boots where the tie rods attach. This allows power steering fluid to escape, leading to a low fluid level in the reservoir and ultimately a loss of hydraulic pressure for power steering assist. If left uncorrected, the pump may also be damaged due to running dry.
Symptoms to watch for
- เห็นของเหลวหยดลงพื้น
- ปั๊มพวงมาลัยพาวเวอร์มีเสียงหึ่งๆ
- พวงมาลัยหนักขึ้น
- กลิ่นไหม้ (น้ำมันพวงมาลัยพาวเวอร์หยดลงท่อไอเสียร้อน)
Root cause
The seals within the power steering rack, particularly the pinion seals and inner tie rod seals, are prone to deterioration and failure over time due to age, heat cycles, and hydraulic pressure.
Permanent fix
- Replace power steering rack assembly
- Flush power steering system and refill with factory-approved fluid (e.g. Subaru ATF-HP or equivalent DEXRON III-spec ATF)
FAQ
What causes legacy power steering rack leak?
The seals within the power steering rack, particularly the pinion seals and inner tie rod seals, are prone to deterioration and failure over time due to age, heat cycles, and hydraulic pressure.
How much does it cost to fix?
National average $1,000–$1,500.
Is this a DIY repair?
Difficulty 3/5. Replace power steering rack assembly
What are the symptoms?
เห็นของเหลวหยดลงพื้น; ปั๊มพวงมาลัยพาวเวอร์มีเสียงหึ่งๆ; พวงมาลัยหนักขึ้น; กลิ่นไหม้ (น้ำมันพวงมาลัยพาวเวอร์หยดลงท่อไอเสียร้อน)