How to Repair Small Hydraulic Support Rods?
2 Answers
Small hydraulic support rods can be repaired using the following methods: 1. First, check if there is enough hydraulic oil in the hydraulic rod; if not, add hydraulic oil. 2. Remove the valve for cleaning, then observe whether the valve core is stuck, its flexibility up and down, and check if the hydraulic gauge is functioning properly. 3. After completing these steps, reinstall the components. If the problem persists, it indicates that the hydraulic rod cannot be repaired and needs to be replaced with a new one. Most automotive hydraulic support rods are located on the engine hood and play a crucial role in lifting the car's engine hood. If the hydraulic support rod is broken, lacks strength, or fails to retract, it should be replaced rather than repaired.
Last time I repaired the hydraulic support struts myself and found that the main issues were seal aging and oil leakage. Before starting, make sure to wear safety goggles because the internal spring can suddenly pop out when the strut is disassembled. Check the strut body for any oil stain marks, and try refilling the strut with hydraulic oil using a grease gun. However, in most cases, if the seal is cracked, it needs to be replaced. I once tried buying universal oil seals, but the size was wrong and they wouldn’t fit at all. In the end, I simply bought new replacement parts—installation only took about 10 minutes. First, prop the hood steady with a wooden stick, then use needle-nose pliers to pry open the ball joint clips at both ends. Remember to replace both struts at the same time, otherwise, the support strength will be uneven.
